Snapshot (also known as The Day After Halloween and One More Minute in the US) is a 1979 Australian thriller film directed by Simon Wincer in his feature film debut. It stars Sigrid Thornton, Chantal Contouri and Robert Bruning. 

Angela is a young hairdresser thrown out of home by her puritantical mother after too many nights out. She quickly falls in with the modeling crowd and does some modeling work herself, while it seems she is being stalked by a mysterious figure driving an ice-cream van. Screenshots: