Unknown Caller

Colin Miller picks up his home phone to an 'unknown caller' who tells him his house has been turned into a bomb, and that although entering isn’t a problem, trying to leave will trip the detonator and blow up his house. Unfortunately, this information came a little too late. Stuck in the house Colin and Jill are forced to face their problems and help each other through their toughest time as their lives tick away and their only way out is to understand the clues the psychopathic caller gives Colin to remember his forgotten past in order to answer his question: Who am I?