Guide for parents: Rated PG-13 in the USA, not recommended for young children, violence, offensive language.
Jill Parrish (Amanda Seyfried) comes home from a night shift to discover her sister Molly (Emily Wickersham) has been abducted. Jill, having escaped from a kidnapping a year before, is convinced that the same serial killer has come back and taken Molly. The police think Jill is crazy and are unwilling to use their resources to help her. Afraid that Molly will be dead by sundown, she sets out alone on a heart-pounding chase to find the killer, expose his secrets and save her sister.