A Vietnam vet with PTSD and his new wife are invited for their honeymoon aboard his war buddy's yacht along with a third war friend and their girlfriends. Soon, they are being slaughtered one-by-one by a mysterious gloved assailant with an unusual pronged murder weapon.
| Actor | Role |
|---|---|
 Britt EklandLinda | Linda |
 John Phillip LawAllen | Allen |
 William SmithBurt | Burt |
 Lewis van BergenMark | Mark |
 April JayneIsabel | Isabel |
 Jillian KesnerClaire | Claire |
 Robert QuarryDr. Khorda | Dr. Khorda |
 James BoothDr. Torrence | Dr. Torrence |
 Donna Kei BenzNurse Mitchell | Nurse Mitchell |
 Don ScribnerRichard Vargas | Richard Vargas |
| BBruno MarcotulliThe Driver | The Driver |
| KKen SmolkaPolice Officer | Police Officer |
| TThomas BloomSoldier | Soldier |