"In his shadow, she found safety. In his secrets, she lost herself."
Emma Hartley (Florence Pugh) believed her marriage was built on love—and discoveries. But when her husband, David (Andrew Scott), is arrested in a high-profile serial murder investigation, her world collapses. The man she vowed to love turns out to be the face of a chilling double life: family man by day, monster by night.
Confined by public scrutiny and media frenzy, Emma becomes both suspect and insider. As detectives piece together clues, she must choose—protect David or protect the truth. Digging through hidden journals, cryptic messages, and incriminating photo albums, she uncovers a labyrinth of violence, secrets, and twisted devotion.
Told from Emma’s perspective, The Serial Killer’s Wife weaves psychological tension with emotional reckoning. It asks how far someone will go for the person they love—and how much darkness one heart can hide. Suspenseful and morally complex, the film is a taut thriller about the lies we live and the lies we choose to keep.