be bear in the 1960 i grow up watch the tv movie of the week in the early 70 and love the creepy movie that be routinely show include crowhaven farm and bad ronald and satan school for girl and kolchak the night stalker and etc and but this one be just plain dumb . this be obviously the writer try to capitalize on the horrific manson murder from a few year earlier . the movie star dennis weaver of mccloud and duel fame a a father who take his family camp on a beach . the family encounter some hippy who for some reason decide to terrorize the family . the reason for this be never explain and and weaver pacifistic stance be hard to swallow . for god sake and call the police and beat the hell of them or something and just do not sit there and whine about it . the acting be pretty lame and the story unbelievable and etc . susan dey look cute in a bikini but that about it . ignore this if it ever air on tv .