The Videotape in the Attic

Original Story

Puzzle situation

While sorting through her late husband's belongings in the attic, a woman discovers a videotape. In the footage, her husband smiles at the camera, while in the background, she is sound asleep on the sofa. She checks the date—it is marked as the tenth day after her husband's death. Terrified, the woman turns around, only to find the attic door has been locked from the outside.