In exchange for helping writer-adventurer Lawrence Colby smuggle 300 watch parts into Paris from Switzerland, Martine Randall asks Colby to help solve a complicated situation involving her friend Sabine Manning, a well-known author of sex novels.
| Actor | Role |
|---|---|
 Robert WagnerLawrence Colby | Lawrence Colby |
 Mary Tyler MooreMartine Randall | Martine Randall |
 Glynis JohnsSabine Manning | Sabine Manning |
 Harvey KormanMerriman Dudley | Merriman Dudley |
 Barbara RhoadesKendall Flanagan | Kendall Flanagan |
 Vincent BeckPainter | Painter |
 Joseph V. PerryJean-Jacques | Jean-Jacques |
 Stuart MargolinRemy | Remy |
 Émile GenestHenri | Henri |
 David MauroJules | Jules |
| PPenny SantonRenée | Renée |
| JJoseph BernardPolice Inspector | Police Inspector |
 Richard AngarolaPascal Decaux | Pascal Decaux |
 Otis YoungBill Elkins | Bill Elkins |
 Herb VolandMoffat | Moffat |