When a cop who is just out of rehab takes the graveyard shift in a city hospital morgue, she faces a series of bizarre, violent events caused by an evil entity in one of the corpses.

When Autumn, a bestselling novelist, sends her mentally unstable stepsister away on a "5150" involuntary mental health hold, her best friends rally around her. Two years, later her stepsister resurfaces with secrets to share about all of them and the line of sanity and insanity gets blurred.