During an exorcism ritual, Hannah Grace—possessed by a demonic entity—levitates and nearly kills a priest before her father, Grainger, ends the ritual by suffocating her with a pillow. As he mourns over her body, a fly lands on her hand, and it twitches, suggesting the presence of the demon remains.
Three months later, Megan Reed, a former Boston police officer struggling with depression and pill addiction following the death of her partner, begins working the night shift at the Boston Metro Hospital morgue. The morgue is housed in an imposing brutalist-style building (portrayed by Boston City Hall). On her second shift, Megan refuses entry to a distressed man (later revealed to be Grainger), while shortly thereafter assisting EMT Randy with receiving the corpse of a young woman—Hannah Grace—who had been stabbed and partially burned in an alley.
As Megan attempts to log the body, her equipment malfunctions, and the corpse’s fingerprints return unreadable. Strange events begin to occur, increasing Megan’s suspicions. She eventually catches Grainger trying to destroy the body, claiming his daughter is not truly dead and must be cremated. He is restrained and taken into police custody.
Megan’s ex-boyfriend, Officer Andrew Kurtz, investigates and confirms that Hannah died three months prior, yet her fingerprints match those recently recorded. Meanwhile, Hannah, reanimated and possessing supernatural abilities, begins killing staff members, including Dave, a security guard, and Megan’s friend Lisa, as her body appears to heal itself with each death.
Megan uncovers surveillance footage of Hannah moving through the building and confronts Randy with the evidence, though he is soon killed. Grainger escapes custody and returns to the morgue, explaining that multiple exorcisms failed and the demon was able to continue inhabiting Hannah’s corpse, growing stronger by killing others. He reveals that Hannah suffered from depression, which allowed the demon to take hold.
Megan agrees to help Grainger cremate the body, but Hannah reanimates, kills her father, and traps Megan. With the help of Andrew and another guard, Megan escapes and ultimately drags the body to the crematorium. After a final confrontation, Megan succeeds in pushing Hannah into the incinerator, destroying the body.
In the aftermath, Megan reveals she has remained clean for over two months. In the final scene, a fly lands on her mirror reflection, which she quickly swats, suggesting the threat may not be entirely over.
Cast
- Shay Mitchell as Megan Reed, a troubled ex-cop who takes the graveyard shift in a morgue.
- Kirby Johnson as Hannah Grace, a girl possessed and resurrected by demons.
- Grey Damon as Andrew Kurtz, a police officer and Megan’s ex-boyfriend.
- Stana Katic as Lisa Roberts, a nurse and Megan’s friend.
- Louis Herthum as Grainger Grace, Hannah Grace’s father.
- Nick Thune as Randy, an EMT and friend of Megan’s.
- Jacob Ming-Trent as Ernie Gainor, a security guard at the hospital.
- Max McNamara as Dave, a security guard at the hospital who has a crush on Megan.
