Malum, a remake of Last Shift, is just another example of egotistical directors trying to salvage their past failures with bigger budgets. Last Shift had some potential. It's disappointing to see a director not learn from their mistakes and try to make up for it by throwing more money at the problem.
If you care about indie horror trivia, here's a fun bit: "Malum" is a remake of an earlier DiBlasi film, 2014's "Last Shift," which has the same basic plot a rookie policewoman guards an abandoned police station, a year after an incident that entangled police officers with demonic cultists.
Rated M for mature. There are a few Violent moments and yes they get mature. There's a lot of shooting zombies and one part cannibal corpses were shown. And an occasional use of the F word in the language department.