Collegian Tree Gelbman wakes up in horror to learn that she's stuck in a parallel universe. Her boyfriend Carter is now with someone else, and her friends and fellow students seem to be completely different versions of themselves. When Tree discovers that Carter's roommate has been altering time, she finds herself once again the target of a masked killer. When the psychopath starts to go after her inner circle, Tree soon realizes that she must die over and over again to save everyone.
Jessica Rothe
as Theresa 'Tree' Gelbman
Israel Broussard
as Carter Davis
Ruby Modine
as Lori Spengler
Suraj Sharma
as Samar Ghosh
Rachel Matthews
as Danielle Bouseman
Phi Vu
as Ryan Phan
Sarah Yarkin
as Dre Morgan
Kenneth Israel
as Dr. Parker
Steve Zissis
as Dean Bronson
Charles Aitken
as Gregory Butler
Laura Clifton
as Stephanie Butler
Missy Yager
as Julie Gelbman
