David Kelsey is a brilliant young scientist who lives in a cheap boarding house and lives a double life. Every weekend David leaves to spend time with his ailing mother in a nursing home – or at least that's what he tells everyone. In fact David's mother has been dead for years, and David spends his weekends posing as someone else in an effort to woo and win Annabelle, the girl who rejected him years ago. David won't take no for an answer, and hi obsession with Annabelle will drive him further and further into darkness and crime.