![DeForest Kelley](http://image.tmdb.org/t/p/w92/fUL1BY8XjLsQihueDD1UUAm0Qy6.jpg)
Bank teller Vince Grayson wakes from a nightmare in which he and an unknown woman murdered a man in a strange, mirrored room. Only a dream...but Vince finds that he has physical objects and bruises from his "dream." His cop brother-in-law dismisses his story...until the family, on a picnic, takes shelter from a thunderstorm in a deserted mansion containing that mirrored room.