A rookie police officer takes her first shift at a decommissioned station, only to discover a night of escalating terror as a blood cult’s evil presence invades the building. Malum is a claustrophobic remake of Last Shift, delivering Occult rituals, possession horror, and siege-like supernatural dread with a modern, extreme horror edge.

Från IMDB:
A rookie police officer willingly takes the last shift at a newly decommissioned police station in an attempt to uncover the mysterious connection between her father's death and a vicious cult.