The 2 films and play of Let the right one in

The whole play is based on a novel and partly of the Swedish movie also titled Let the right one in. Below are three synopsis on the two film adaption, play adaption:

Let the right one in - film synopsis

In the suburb of Blackeberg in Stockholm, the twelve year-old Oskar is a lonely and outcast boy bullied in school by Conny and two other classroom mates; at home, Oskar dreams on revenging the trio of bullies. He befriends his twelve year-old next door neighbour Eli that only appears during the night in the playground of their building. Meanwhile, Eli's father is a serial-killer who drains the blood of his victims to supply Eli, so she doesn't have to kill. Eli advises Oskar to react to Conny fighting back; however, he soon discovers that she is a vampire and he feels fear and love for the girl.

Let me in - film synopsis

In Los Alamos, New Mexico, the twelve year-old Owen is a lonely and outcast boy bullied in school by Kenny and two other classmates; at home, Owen dreams of avenging himself against the trio of bullies. He befriends his twelve-year-old next door neighbour, Abby, who only appears during the night in the playground of their building. Meanwhile, Abby's father is a wanted serial-killer who drains the blood of his victims to supply Abby, who is actually an ancient vampire. Abby advises Owen to fight Kenny; however, soon he discovers that she is a vampire, and he feels fear and love for the girl. Meanwhile a police officer is investigating the murder cases, believing that it is a satanic cult.

Let the right one in novel – Plot synopsis

The story centers on the relationship between a 12-year-old boy, Oskar, and a centuries-old vampire child, Eli. It takes place in Blackeberg, a working class suburb of Stockholm, in the early 1980s. The book focuses on the darker side of humanity, dealing with issues such as existential anxiety, fatherlessness, alcoholism, school bullying, pedophilia, child transgenderism, and murder.