Ig Perrish (Daniel Radcliffe) had a great life, a rich family, and the woman of his dreams, the beautiful redhead Merrin Williams. However, Merrin was murdered under mysterious circumstances. Suddenly, Igo is the prime suspect and no one, not even his own family, believes in his innocence. Broken and wrongly accused, he lives from day to day and fends off his unhappiness with alcohol. One day he wakes up to find strange horns growing on his forehead. Could this be a sign and he manages to track down the killer? Along with the horns, he has acquired a special ability and decides to do everything he can to find the murderer of his love.