Movies like Caveat

A lone drifter, Isaac suffering from partial memory loss accepts a job from his old landlord Barrett, to look after his niece Olga, a psychologically troubled woman living in an abandoned house on an isolated island. When Barrett convinces Isaac to confine his movements to the house and leaves the two of them alone, a game of cat and mouse ensues with Isaac fighting to survive amid the terrifying resurgence of his own memory.