An American professor of mathematical probability, Luke Williams, meets an old lady Lavinia Fullerton on a train. She tells him about an uncanny string of deaths in her village and even predicts the next one.<br /><br />Bill Bixby as Prof. Luke Williams<br />Lesley-Anne Down as Bridget Conway<br />Olivia de Havilland as Honoria Waynflete<br />Helen Hayes as Lavinia Fullerton<br />Patrick Allen as Maj. Horton<br />Shane Briant as Dr Thomas<br />Freddie Jones as Constable Reed<br />Leigh Lawson as Jimmy Lorrimer<br />Jonathan Pryce as Mr Ellsworthy<br />Ivor Roberts as Vicar (see Alfred Wake)<br />Trevor T. Smith as Rivers<br />Anthony Valentine as Abbot<br />Timothy West as Lord Gordon Easterfield<br />Carol MacReady as Mrs Pierce<br />Diana Goodman as Rose Humbleby<br />Frederick Wolfe as Avery<br />Patrick Wright as Attendant