Relentless 4: Ashes to Ashes is a 1994 direct-to-video thriller directed by Oley Sassone. It is the fourth film in the "Relentless" series. Detective Sam Dietz (Leo Rossi) is back again. This time he is trying to find and stop a serial killer committing ritualistic murders in the Los Angeles area. He finally finds the one thing all the victim's had in common: they were all patients of Dr. Sara Lee Jaffee (Famke Janssen), a psychiatrist who knows more than she is telling. Dietz and his partner Jessica Parreti (Colleen Coffey) begin investigating Jaffee and find out that her methods aren't exactly considered conventional. They also discover that all the victims had near-death experiences and Jaffee treated them for the issues it caused. Dietz is also dealing with losing his wife recently and trying to raise his troubled teen son, Cory (Christopher Pettiet), on his own. Can he and Parreti stop the killer before it is too late?