A husband and wife team are hired to protect an eccentric millionaire from an assassin but a series of murders follows.
| Actor | Role |
|---|---|
 Gayle HunnicuttSuzy Buckley | Suzy Buckley |
 Christopher CazenoveSunny Garrick | Sunny Garrick |
 Peter DyneleyDavid Garrick | David Garrick |
 Stephen ReaArden Buckley | Arden Buckley |
 Jean KentMrs. Garrick | Mrs. Garrick |
 Derek FrancisShelby Grafton | Shelby Grafton |
 Julia BreckSamantha | Samantha |
 Gilly FlowerMiss Cardiff | Miss Cardiff |
| FFrances BennettMrs. Gale | Mrs. Gale |
| SShirley CainMrs. Terril | Mrs. Terril |
 Oliver SmithMarcus | Marcus |
 Arthur WhiteCharley Wilson | Charley Wilson |
| SSally MilesKaren Standard | Karen Standard |
| JJames ApplebyBrett | Brett |
| FFrancis MortimerYoung Man | Young Man |