Deep Murder (2018)

A killer decides to go to an unconventional venue in order to ply his trade, the set of a softcore porn movie. Suddenly, everyone is on edge as the bodies just won't stop piling up. The killer seems virtually unstoppable, and none of the cast or crew members know how to handle such an outrageous situation. But with the murderer closing in on even more victims, they're going to have to act before it's too late.