Since losing her husband Mal (Edi Gathegi) in a drunk-driving incident, Sophie (Judy Greer) has struggled to manage crippling grief, a full-time job, and the demands of parenting her devastated teenage daughter (Faithe Herman). When her husband’s best friend Jabir (Payman Maadi), a former physicist, reveals that he has been building a time-bending machine that could restore her former life, Sophie will be faced with an impossible choice—and unforeseeable consequences.