Straight On till Morning (film)

Straight On till Morning is a 1972 British thriller film directed by Peter Collinson and starring Rita Tushingham, Shane Briant, James Bolam, Katya Wyeth and John Clive. A reserved young woman finds herself attracted to a handsome stranger, unaware of his psychotic tendencies. It was made by Hammer Studios.

Peter, appears to live with an older, alcoholic woman. He invites her upstairs. She goes into his room and, unseen, starts screaming.After discovering Caroline in bed with another coworker that she was interested in Joey, Brenda runs crying out of the flat and onto the streets. She comes across a scruffy dog, and sees its owner looking for it. Recognising the young man who had previously bumped into her Peter, she picks up the dog and runs home with it. Unbeknownst to her, Peter sees her do so. ........

Source: Wikipedia