Let Me In

In March 1983, in Los Alamos, New Mexico, a disfigured man is taken to the hospital. An unnamed police detective tries to question him about a recent murder. While the detective answers a call outside the room, the disfigured man jumps out of the window, leaving behind a note that reads: "I'M SORY ABBY". Two weeks earlier, Owen, a lonely and unhappy 12-year-old boy who is neglected by his divorcing parents, sees a barefoot little girl named Abby and an older man moving in next door. At school, a teenage bully named Kenny and two of his friends constantly terrorize Owen, who lies to his mother about it but tells Abby the truth. Abby encourages him to retaliate, and pledges to protect him. Owen and Abby become close friends and start communicating by Morse code through the walls of their apartments. Abby's companion Thomas abducts a local teenager and drains the boy's blood into a jug, only to accidentally spill all of its contents. Starving, Abby attacks a neighbor and drinks his blood, killing him and forcing Thomas to dispose of the body. On a later night, Thomas hides in the back of another car, but is discovered. In the ensuing struggle, the car falls into a ditch and flips over. Trapped, Thomas pours concentrated sulfuric acid on his face, leading to his hospitalization. Abby learns what happened and visits Thomas in the hospital, who lets her drink his blood before falling to his death. That night, Owen is awakened by Abby, who insists he verbally invite her in. After removing her clothes, she spends the night in his bed and agrees to be his girlfriend. The next day, Owen's class goes ice skating on a frozen river. Cornered by the bullies, Owen smashes the side of Kenny’s head with a metal pole, splitting his left ear. At the same time, the students find the neighbor's body encased in the ice. Later, Owen tries to make a blood pact with Abby. Seeing blood, Abby reveals her vampire form and flees, feeding on another neighbor, but fails to kill her before she has to escape. The next night, when Owen comes to see her, she admits that she is a vampire and Thomas was not her father. Owen discovers an aged photo of her with Thomas as a young boy. Scared, Owen wants to leave but is stopped by Abby, who will not answer when he asks what she will do to him; she finally lets him leave. The neighbor Abby left alive is turned into a vampire and burns to death in the hospital when a nurse opens the curtain to reveal sunlight. That night, Abby visits Owen's apartment and asks if she can come in; when he asks what will happen without his permission, she steps inside and starts bleeding all over. Horrified, he invites her in and hugs her, then helps her to wash off the blood and don one of his mother's old dresses. When his mother nearly catches them, Abby flees out the window; Owen later sneaks out to spend the night at her apartment. In the morning, the detective forces his way into Abby's apartment and finds her asleep, only to be distracted by Owen. Abby wakes and attacks the detective, killing him. Horrified at her actions, Abby decides to leave town and kisses a heartbroken Owen goodbye. During swim class, Kenny, his older brother Jimmy, and their friends set a dumpster on fire to distract the teacher, then ambush Owen and begin to drown him; Abby returns to rescue Owen and dismember his tormentors. An unspecified time later, Owen leaves town on a train, concealing Abby in a large trunk.

Plot from Let Me In (film)CC BY-SA 4.0