My Teacher, My Obsession (2018)

Riley (Laura Bilgeri) is struggling to make friends after transferring to a new high school where her father, Chris (Rusty Joiner), is an English teacher. When she meets Kyla (Lucy Loken), a self-described loner, Kyla quickly becomes a close friend and listens to Riley talk through her problems. However, the friendship takes a strange turn when Riley learns that Kyla is obsessed with her dad. When another student strives for Chris's attention, Kyla sets up a devious trap to claim him all to herself. Will Kyla successfully seduce Chris and start a twisted new life with him by removing everyone in her path, or will Riley be able to save her father from Kyla's treacherous plot before it's too late?