Gratuity

There's a pretty good short film on YouTube called Gratuity. It features a woman having a really rough time of it.

Despite the fact that she's bound and gagged, she still tries to make an escape by climbing out of the tub while still trussed up. But only to be recaptured and brought into a room with several other bound people (including guys).

As far as I could see, Miss Striped Shirt is the only one in the group who's tied barefoot (and she's the only one who survives). You can see this video below: