Hotline (1982)

Here is a TV movie with Lynda Carter, made right after the run of her Wonder Woman series. A woman who has worked at the crisis hotline for only two days, receives bizarre calls from a deranged man reciting riddle like clues to the grotesque murders he's committed-clues that reveal she is the next victim. This is perhaps Lynda's creepiest film (with a diabolical finale). Also with Steve Forrest.