My Sister's Serial Killer Boyfriend

Maddie, a determined reporter, is drawn into a chilling investigation of murders targeting women who resemble each other. Her world is shattered when her younger sister Olivia becomes the latest victim. Concerned for their safety, Maddie recommends a self-defense course. However, complications arise when Olivia develops feelings for their enigmatic instructor. Maddie grows increasingly wary of this man, especially as he remains secretive about his past. With time running out, she races against the clock to protect her sister from what could become a fatal infatuation.