While Miss Marple is on vacation in a luxurious Caribbean resort, a fellow guest confides he has evidence that another resident of the hotel is an unscrupulous serial murderer but is poisoned before he can reveal his identity to her.
| Actor | Role |
|---|---|
 Helen HayesMiss Jane Marple | Miss Jane Marple |
 Jameson ParkerTim Kendall | Tim Kendall |
 Season HubleyMolly Kandall | Molly Kandall |
 Cassie YatesLucky Dyson | Lucky Dyson |
 Zakes MokaeCap. Daventry | Cap. Daventry |
 Stephen MachtGreg Dyson | Greg Dyson |
 Beth HowlandEvelyn Hillingdon | Evelyn Hillingdon |
 Lynne MoodyVictoria Johnson | Victoria Johnson |
 George InnesEdward Hillingdon | Edward Hillingdon |
 Brock PetersDr. Graham | Dr. Graham |
 Michael PrestonArthur Jackson | Arthur Jackson |
| BBernard McDonaldMinister | Minister |
 Santos MoralesMiguel | Miguel |
 Sam ScarberSergeant | Sergeant |
| CCecil SmithHotel Guest | Hotel Guest |
 Maurice EvansMajor Palgrave | Major Palgrave |
 Swoosie KurtzRuth Walter | Ruth Walter |
 Barnard HughesMr. Rafiel | Mr. Rafiel |