A Midsummer Night's Dream is a comedy written by William Shakespeare c. 1595 or 1596. The play is set in Athens, and consists of several subplots that revolve around the marriage of Theseus and Hippolyta. One subplot involves a conflict among four Athenian lovers. Another follows a group of six amateur actors rehearsing the play which they are to perform before the wedding. Both groups find themselves in a forest inhabited by fairies who manipulate the humans and are engaged in their own domestic intrigue.

Act 1

• The play opens with Theseus and Hyppolyta who are four days away from their wedding. Theseus is not happy about how long he has to wait while Hyppolyta thinks it will pass by a dream. Theseus is confronted by Egeus and his daughter Hermia, who is in love with Lysander, resistant to her father's demand that she marries Demetrius, whom he has arranged for her to marry. Enraged, Egeus invokes an ancient Athenian law before Duke Theseus, whereby a daughter needs to marry a suitor chosen by her father, or else face death. Theseus offers her another choice: lifelong chastity as a nun worshipping the goddess Diana, but they both deny his choice and make a secret plan to escape into the forest for Lysander's Aunt's house, in order to run away from Theseus. Hermia tells their plans to Helena, her best friend, who pines unrequitedly for Demetrius, who broke up with her to be with Hermia. Desperate to reclaim Demetrius's love, Helena tells Demetrius about the plan and he follows them in hopes of finding Hermia.
• Peter Quince and his fellow players Nick Bottom, Francis Flute, Robin Starveling, Tom Snout and Snug plan to put on a play for the wedding of the Duke and the Queen, "the most lamentable comedy and most cruel death of Pyramus and Thisbe". Quince reads the names of characters and bestows them on the players. Nick Bottom, who is playing the main role of Pyramus, is over-enthusiastic and wants to dominate others by suggesting himself for the characters of Thisbe, the Lion, and Pyramus at the same time. Quince insists that Bottom can only play the role of Pyramus. Bottom would also rather be a tyrant and recites some lines of Ercles. Bottom is told by Quince that he would do the Lion so terribly as to frighten the duchess and ladies enough for the Duke and Lords to have the players hanged. Snug remarks that he needs the Lion's part because he is "slow of study". Quince assures Snug that the role of the lion is "nothing but roaring." Quince then ends the meeting telling his actors "at the Duke's oak we meet".

Act 2

• In a parallel plot line, Oberon, king of the fairies, and Titania, his queen, have come to the forest outside Athens. Titania tells Oberon that she plans to stay there until she has attended Theseus and Hippolyta's wedding. Oberon and Titania are estranged because Titania refuses to give her Indian changeling to Oberon for use as his "knight" or "henchman", since the child's mother was one of Titania's worshippers. Oberon seeks to punish Titania's disobedience. He calls upon Robin "Puck" Goodfellow, his "shrewd and knavish sprite", to help him concoct a magical juice derived from a flower called "love-in-idleness", which turns from white to purple when struck by Cupid's arrow. When the concoction is applied to the eyelids of a sleeping person, that person, upon waking, falls in love with the first living thing they perceive. He instructs Puck to retrieve the flower with the hope that he might make Titania fall in love with an animal of the forest and thereby shame her into giving up the little Indian boy. He says, "And ere I take this charm from off her sight, / As I can take it with another herb, / I'll make her render up her page to me." Helena continually makes advances towards Demetrius, promising to love him more than Hermia. However, he rebuffs her with cruel insults. Observing this, Oberon orders Puck to spread some of the magical juice from the flower on the eyelids of the young Athenian man.
• Instead, Puck mistakes Lysander for Demetrius, not having actually seen either before, and administers the juice to the sleeping Lysander. Helena, coming across him, wakes him while attempting to determine whether he is dead or asleep. Upon this happening, Lysander immediately falls in love with Helena. Helena, thinking Lysander is playing a trick on her, runs away with Lysander following her. When Hermia wakes up after dreaming a snake ate her heart, she sees that Lysander is gone and goes out in the woods to find him.

Act 3

• Meanwhile, Quince and his band of six labourers ("rude mechanicals", as they are described by Puck) have arranged to perform their play about Pyramus and Thisbe for Theseus' wedding and venture into the forest, near Titania's bower, for their rehearsal. Quince leads the actors in their rehearsal of the play. Bottom is spotted by Puck, who (taking his name to be another word for a jackass) transforms his head into that of a donkey. When Bottom returns for his next lines, the other workmen run screaming in terror: They claim that they are haunted, much to Bottom's confusion. Determined to await his friends, he begins to sing to himself. Titania, having received the love-potion, is awakened by Bottom's singing and immediately falls in love with him. She lavishes him with the attention of her and her fairies, and while she is in this state of devotion, Oberon takes the changeling boy.
• Oberon sees Demetrius still following Hermia, who thinks he killed Lysander, and is enraged. When Demetrius goes to sleep, Oberon, outraged about Puck's mistake, sends him to get Helena while he charms Demetrius' eyes. Upon waking up, he sees Helena. Now, both men are in love with Helena. However, she is convinced that her two suitors are mocking her, as neither loved her originally. Hermia finds Lysander and asks why he left her, but Lysander claims he never loved Hermia, instead loving Helena. This soon turns into a quarrel. Oberon and Puck decide that they must resolve this conflict, and by the morning, none of them will have any memory of what happened, as if it were a dream. Oberon arranges everything so Helena, Hermia, Demetrius and Lysander will all believe they have been dreaming when they awaken. Puck distracts Lysander and Demetrius from fighting over Helena's love by mimicking their voices and leading them apart. Eventually, all four find themselves separately falling asleep in the glade. Once they fell asleep, Puck administers the love potion to Lysander again, returning his love to Hermia again, and cast another spell over the four Athenian lovers, claiming all will be well in the morning.

Act 4

• Having achieved his goals, Oberon releases Titania, orders Puck to remove the donkey's head from Bottom. The fairies then disappear, and Theseus and Hippolyta arrive on the scene, during an early morning hunt. They find the lovers still sleeping in the glade. They wake up the lovers and, since Demetrius no longer loves Hermia, Theseus over-rules Egeus's demands and arranges a group wedding. The lovers at first believe they are still in a dream and cannot recall what has happened. The lovers decide that the night's events must have been a dream.
• After they exit, Bottom awakes, and he too decides that he must have experienced a dream "past the wit of man". At Quince's house, he and his team of actors worry that Bottom has gone missing. Quince laments that Bottom is the only man who can take on the lead role of Pyramus. Bottom returns, and the actors get ready to put on "Pyramus and Thisbe".
• In Athens, Theseus, Hippolyta and the lovers watch the six workmen perform Pyramus and Thisbe. The performers are so terrible playing their roles that the guests laugh as if it were meant to be a comedy, and everyone retires to bed. Afterwards, Oberon, Titania, Puck, and other fairies enter, and bless the house and its occupants with good fortune. After all the other characters leave, Puck "restores amends" and suggests that what the audience experienced might just be a dream.