爱丽丝(Maggie Q饰)是一名治疗睡眠的医生，她的新服务对象是一个饱受睡眠折磨的家庭。每当这家人入睡时，“夜魔”便会来袭，爱丽丝必须设法保护这家人。
Maggie Q
Alice Arnolds
Will Kemp
Tom Arnolds
Sylvester McCoy
Amado
Sam Troughton
Charlie Morgan
Kristen Bush
Sarah Morgan
Adam Lazarus
Nurse
Susan Fordham
Medic
Charlie Bond
American Nurse
William Todd-Jones
The Night Hag
William Rhead
Liam
Vincent Andriano
Cam
Lindy Pieri
Hospital Patient
Minouche Kaftel
Doctor 2
Emily Ng
