My Husband's Killer Girlfriend (2021)

A woman is struck by a heart-wrenching revelation as she comes to realize that the nanny she entrusted to care for her 3-year-old daughter is none other than her ex-husband's new girlfriend. The emotional turmoil intensifies when she discovers that this nanny harbors a deeply sinister side – she's a manipulative psychopath whose presence threatens to upend her life.