At a private school where gambling determines social status, a skillful new student with a mysterious past is shaking things up — and betting on revenge.

When an amateur photographer notices "HELP" scrawled on a fogged window in a picture she took of an old house, she begins to suspect that the man living there isn't as mild-mannered as he seems.

Fifteen years after Cynthia put her daughter up for adoption, she learns that the girl has gone missing and immediately joins the search, determined to save the daughter she never knew.

Diana Parker learns that a home intruder is none other than her biological daughter, given up for adoption years ago. However, they soon discover that a remorseless killer will do anything to stop the family reunion including murder.