In the horror film Slumber (out Dec. 1), Maggie Q plays a sleep doctor, haunted by the mysterious nocturnal death of her younger brother. While performing a routine examination on a traumatized family with sleeping problems, Alice is attacked by the father in his sleep. The latter is arrested, and blamed for causing the family’s sleep issues, but when he is thrown into jail, and the problems get progressively worse, Alice is forced to abandon scientific rationale and accept that the family is being terrorized by a parasitic demon who feeds on the weak whilst they sleep: the Night Hag. In order to defeat the dark spirit, Alice must journey into her own nightmares and confront her childhood demons.

Slumber, directed by Jonathan Hopkins, also stars Kristen Bush and Sam Troughton. The film is being distributed by Vertical Entertainment.

Exclusively watch the trailer for Slumber, above.