Here's one from a long, long time ago:
Blind Terror, with Mia Farrow. She's blind (& very delicate & vulnerable) & wandering innocently around this large house. Little does she know that there's a killer in there with her! (we never see his face, just his evil, black boots!
). She also doesn't realize that he's been killing off the family, one by one. - there are gruesome, staring corpses all around the place. She often narrowly misses them while walking around.
At one point she decides to take a bath (cut to the bloody corpse in bath tub).. She turns on the water (cut to lots of blood red water escaping from the outside drainpipe) ... THEN proceeds to get into the bath!
I'm not quite sure what happened after that: Like everyone else in the theatre (all women), I was too busy screaming in horror & averting my eyes to see what actually happened. And clutching onto some total stranger! My friend was doing the same.
This was the afternoon session. When the film ended & the lights came back on, we all laughed at ourselves & each other, half-sheepishly & very relieved that all that suspense had come to an end.