This is one of Alistair MacLean's most nervously exciting thrillers, and the film is equally sweaty. You won't have any nails left to bite when it is over.
A Caribbean cruiser with the crème de la crème on board, all posh multi millionaires with one or another question mark, is leaving some port somewhere, there is a gang sitting around the roulette, there are cocktail parties, all are well dressed and may not appear unless they are proper enough, and of course there is a femme fatale among them, seemingly the mistress of David Janssen, one of the greatest question marks on board.
There is also a suspicious cancer patient closely guarded by a forbidding German nurse, and soon important members of the crew start to get killed, especially around the communication centre.
Fortunately Richard Harris is on board, and another one to help with the situation is Gordon Jackson as the doctor, whose help is going to be needed when the ship gets crowded with patients and bodies.
There is a suspicious coffin on board as well, the contents of which is anything but a dead body. There the intrigue starts, and Richard Harris will get his hands full in due order, as he always does.
It's a great film of suspense no matter how cheaply made it is, you don't have to put much effort to it when Alistair MacLean has written the story and already provided all the details needed to put together an awesome show of violence, war, gunfights, sinking ships, explosions, bloody murders and a terrifying plot. Great show!