Devil to Pay follows wealthy power couple Luke and Janice Dodd, whose marriage that relies more on Luke’s guilt over crippling his wife in a car accident years earlier and the fact they have a daughter together named Audrey than love.
Soon after Audrey receives a music box for her eighth birthday, her behavior becomes increasingly disturbing and people around the family begin to die. When Luke asks Audrey why she’s acting out, she blames her new imaginary friend Monika.
Audrey shows Luke a photograph of a young woman from the music box, claiming she is the real Monika. Luke enlists the help of news reporter and old girlfriend, Kristina. Their investigation leads them into a violent underworld, and Luke soon realizes his family may be responsible for a horrific crime.