International terrorists attempt to kidnap a wealthy couple's child. Their plan comes unstuck, however, when a deadly Black Mamba, sent by mistake instead of a harmless snake, escapes and terrorizes both them and their hostages.
Actors rehearsing a show at a mysterious seaside theater are being killed off by an unknown maniac.
Charles Hathaway wakes up in West Wales with no recollection of who he is or how he got there. With the help of a Cardiff specialist he traces his life back to his gorgeous wife and their large London house, so all seems well with the world. But more detective work starts to uncover an alarming chain of further stunning wives and a way of going on that the new Charles finds pretty unacceptable.
