Yeah, the film gone girl was the same. I laid awake that night convinces my missus was going to bludgeon me to death in my sleep.
Seen it a couple of times and yes, it’s a very creepy film. Seen it performed on stage as well, in Bath and London. The Bath Theatre Royal performance was a stunner with just two actors - John Duttine and Charles Kay - although “she” made a couple of nerve shredding appearances as well later on. Imagine a darkened stage when suddenly this figure in black manifests itself right at the edge and lets out a piercing, prolonged scream. I think the whole audience jumped out of their seats! I know I did.
