In Rotterdam, Baas (Lex Goudsmit) sells a batch of fake diamonds to a gang of international con-men. They pay in dollars: a suitcase full of banknotes is sent on a ship from Rotterdam to Hamburg. The wife of one of the gang members (played by Josephine van Gasteren – sister of director Louis) accompanies it to keep an eye on things. But the ship strands off the island of Terschelling and a race ensues between Baas, the gang, the shipowner and the insurer to get to the ship first and secure the case of money.
| Actor | Role |
|---|---|
 Lex GoudsmitBaas | Baas |
| JJosephine van GasterenIrma Haacke | Irma Haacke |
| WWim WenninkPaul Brandt | Paul Brandt |
| JJan BakkerLucas | Lucas |
| HHenk BruinsDr. Hacke | Dr. Hacke |
| YYge DraaismaZeevaartscholier | Zeevaartscholier |
| AAtze HillebrandNot listed | Not listed |
| RRob VoorwindeNot listed | Not listed |
| WWim BaggeNot listed | Not listed |
| FFranc. CarasquerNot listed | Not listed |
| EEnd Djin TjeeNot listed | Not listed |
| TTjoe Liang GoeiNot listed | Not listed |
| BBrian Gwan OuwNot listed | Not listed |
| RRiekert TeensmaNot listed | Not listed |
| RRiek PinellNot listed | Not listed |
| JJannus ToxopeusNot listed | Not listed |
| AAnnie TollenaarNot listed | Not listed |
| GGrietje BosNot listed | Not listed |
| EEls HoetinkNot listed | Not listed |
| MMolly DirkzwagerNot listed | Not listed |
| DDirk van RozendalNot listed | Not listed |
| TTjaard KlijnNot listed | Not listed |
| JJacob SwartNot listed | Not listed |
| DDick DuyfNot listed | Not listed |
 Louis van GasterenReder | Reder |