Berlin Syndrome, directed by Cate Shortland and starring Teresa Palmer, is a psychological captivity thriller about an Australian tourist who becomes imprisoned in a Berlin apartment by the man she believed she had a brief romance with. As days turn into weeks, her struggle shifts from escape to psychological survival. The film explores control, obsession, and the slow erosion of hope through an intense character-driven suspense framework.

Från IMDB:
A passionate holiday romance leads to an obsessive relationship when an Australian photojournalist awakens in a Berlin apartment one morning and is unable to leave.