Tales of the Unexpected - Season 1 Episode 8 -

William Botibol, an American passenger on a British cruise ship, is anxious to win the rich sweepstake for predicting the distance the ship will travel in twenty-four hours - and William realizes that if the captain were to need to go back to pick up a man overboard, then his own ticket should win. So long as someone sees him go over the side, there can be no real problem...