The disturbing true story of a North Carolina man who impregnated his biological daughter and then killed her, her adoptive father and his own infant son in a triple-murder-suicide is being adapted into a new Lifetime movie.

In Husband, Father, Killer: The Alyssa Pladl Story, premiering Oct. 19 at 8/7c on Lifetime, viewers will follow the lives of Alyssa (Jackie Cruz) and her ex-husband Steven (Matthew MacCaull), who starts to have an affair with his biological daughter when she comes back into their lives after living with adoptive parents for her first 18 years.

(An exclusive trailer is shown below.)

“After an instant connection when they reunite, Steven convinces Katie (Matreya Scarrwener) to move in with him, Alyssa and their two young daughters,” the trailer’s description reads.

“Steven then starts neglecting the rest of the family and Alyssa finally has enough and moves out. When Alyssa discovers that Katie and Steven are having an affair and expecting, she confronts them and tries to convince Katie of Steven’s abusive past. Katie refuses to listen until it’s too late.”

The film is directed and executive produced by Elisabeth Rohm, and produced by HFK Productions Inc. and Rohm Feifer Entertainment. It mimics the real life story of Steven Pladl, who was arrested in January 2018 for impregnating his biological daughter, Katie Pladl, whom he and his ex-wife placed for adoption when she was a baby. They had reunited two years earlier.

Katie and Steven illegally married in July 2017 and in September welcomed a baby boy before moving to North Carolina, per CBS News, where they lived publicly as husband and wife. Katie and Steven were released on bond in February 2017 shortly after their arrests on incest charges.

But the events that followed were even worse.

Husband, Father, Killer: The Alyssa Pladl Story premieres Oct. 19 at 8/7c on Lifetime.