My Teacher, My Obsession (which was recently renamed Dad Crush) is a 2018 American thriller drama film directed by Damian Romay, written by Patrick Robert Young and starring Rusty Joiner, Lucy Loken and Laura Bilgeri.

The plot revolves around Riley (Laura Bilgeri) who has transferred to a new high school where her father is working as an English teacher.

During his first lesson, Chris catches the attention of both Tricia, a popular girl, and Kyla, the school's yearbook photographer.

After class, Kyla befriends Riley, who reveals she is Chris's daughter, and asks to come over to her house for a study session.

The next day, Kyla, having filled her locker with lewd photos she had taken of herself the night before, tells Chris she is being harassed, and he promises to help find whoever is responsible.

The following day, police arrive and take Tricia away, having found the phone used to text Chris the sexually suggestive messages, as well as containing the lewd photos of Kyla, in her locker.

That night at Riley's birthday party, Kyla enters Chris' office at his home and seduces him into having sex.

Making her way to Chris's class, she holds the scalpel to his throat, telling him they are meant to be together, and also revealing she was the one that had manipulated her previous teacher, not vice versa.

The soundtrack of My Teacher, My Obsession features 5 songs by Los Angeles band Modern Time Machines: "The Feud", "Faster Falling Star", "Alper", "Rocketship", and "Bastard Child".