A puzzling mystery and mystery puzzle in one! Read the mystery Obsession and assemble this challenging 1,000 - piece puzzle to discover the cryptic clues hidden within. This sinister mystery revolves around a psychopathic killer obsessed with Hitchcock's famous movies - The Birds, Psycho and Frenzy. The finished picture is a secret, as it is not pictured on the box, adding to the thrill of the game. Keep your wits about you to solve this mystery and catch a killer before he or she strikes again! Ideal for Hitchcock and mystery fans. Includes a 1000 - piece puzzle and story booklet. Completed puzzle measures 23" x 29".