Synopsis: Ig Perrish is the number one suspect for the violent rape and murder of his girlfriend, Merrin. Hungover from a night of hard drinking, Ig awakens one morning to find horns starting to grow from his own head and soon realizes their power drives people to confess their sins and give in to their most selfish and unspeakable impulses – an effective tool in his quest to discover the true circumstances of his late girlfriend's tragedy and for exacting revenge on her killer Director: Alexandre Aja Writer: Keith Bunin Cast: Daniel Radcliffe as Ignatius "Ig" Perrish Mitchell Kummen as young Ig Max Minghella as Lee Tourneau Dylan Schmid as young Lee Joe Anderson as Terry Perrish Jared Ager-Foster as young Terry Juno Temple as Merrin Williams Sabrina Carpenter as young Merrin Kelli Garner as Glenna Laine MacNeil as young Glenna James Remar as Derrick Perrish Kathleen Quinlan as Lydia Perrish Heather Graham as The Waitress David Morse as Dale Williams Alex Zahara as Dr.