Gone

Jillian "Jill" Conway (Amanda Seyfried) lives in Portland, Oregon with her sister, Molly (Emily Wickersham). One year earlier, Jill was kidnapped by a brutal serial killer who held her captive in a deep vertical hole containing the remains of his other victims somewhere in Portland's 5,100-acre Forest Park. Jill used one of the bones to stab her abductor when he arrived in the hole to kill her, and escaped using his rope ladder. When the Portland police were unable to find the hole and discovered that Jill had been committed to a psychiatric institution after her parents' death, they believed the abduction only happened in Jill's head and sent her back to a psychiatric facility.