Arsène Baudu and Hyacinthe, a pair of small-time crooks, fall prey to Alexandre Larsan-Bellac, who involves them (against their will) in high-profile swindling, but their success is quite limited. For starters they are deceived by Mrs. Paterson, a charming widow. Later on, Ribeiro, a Portuguese contractor and former victim of the two crooks, traces them and forces them to work on one of his building sites for damages. Just then, Larsan-Bellac resurfaces with plans to lure Ribeiro once again. —Guy Bellinger
| Actor | Role |
|---|---|
 Paul MeurisseAlexandre Larsan-Bellac | Alexandre Larsan-Bellac |
 Michel SerraultRimero | Rimero |
 Bernard BlierHyacinthe Camus | Hyacinthe Camus |
 Jean LefebvreArsène Baudu | Arsène Baudu |
 Yvonne ClechLady Valérie Paterson | Lady Valérie Paterson |
 Claire MaurierMicheline Camus | Micheline Camus |
 Daniel Ceccaldile directeur Barnave | le directeur Barnave |
 Robert Dalbanle concierge de l'hôtel | le concierge de l'hôtel |
 Jacques Dynamle chauffeur de Rimero | le chauffeur de Rimero |
 Philippe Castellile barman | le barman |
 Paul PréboistLe brocanteur (non crédité) | Le brocanteur (non crédité) |
| VVéronique VendellJeanne | Jeanne |
 Frank VillardM. Gino (non crédité) | M. Gino (non crédité) |
| RRoger DutoitArthur Thibaut | Arthur Thibaut |
| JJean-Henri ChamboisVictor Buffe, le bonnetier | Victor Buffe, le bonnetier |
 Paul Demangele marchand de vieux papiers | le marchand de vieux papiers |
 Jean PoiretTraffic officer | Traffic officer |