Young photographer Andy is commissioned to take advertising photographs of the film star Hanna Peters. She is on holiday, and to his confusion and bewilderment Andy finds that her twin sister works in Hanna's hotel. The comedy of errors that arises keeps Andy on tenterhooks until he finds his true love in sister Renate.
| Actor | Role |
|---|---|
 Roy BlackAndy Hard | Andy Hard |
 Uschi GlasHanna/Renate | Hanna/Renate |
 Georg ThomallaFritz Mohrenkopf | Fritz Mohrenkopf |
 Eddi ArentMr. Brown | Mr. Brown |
 Viktor StaalDr. Peters | Dr. Peters |
 Angelika OttSheila Garrett | Sheila Garrett |
| RRenate HeuerSusanne | Susanne |
| DDieter KaiserKlaus | Klaus |
| JJohann SklenkaHieronymus Zipfl | Hieronymus Zipfl |
 Walter BuschhoffBusebius | Busebius |
| CChristian AndersSänger | Sänger |
 Ernst StankovskiZiborius | Ziborius |
 Peter WeckRezeptionist | Rezeptionist |
| AAlfred BöhmGendarm | Gendarm |