The concept of this movie is one of its strongest points. Two teenage girls making a series of prank calls that they 'saw what you did' until by chance they call someone who actually has killed someone. Unlike the other Castle movies I've seen, this one actually has subtext. The girls' blossoming sexuality becomes the main reason for their problems as they (one in particular) are keen to rid themselves of teenage sexual frustration. Joan Crawford has a small role (but star billing, thank you very much) and, as has already been noted, does seem to be quite drunk in her scenes. Unfortunately, she also has about two feet of piled up grey hair that certainly wasn't her best look. She's convincing enough as an aging woman desperate to keep her man. Enjoyable enough for what it is, and recommended to anyone who liked 'Strait-Jacket' and the like.