John Mills and James Mason star as two long term rivals in this humorous tale of class rivalry. When the pompous Colonel Southey (John Mills) discovers that Captain Aimsley (James Mason) has been assigned to his unit in post war Germany, he attempts to conceal his pre-war employment as a clerk at the Aimsley' family firm. The suave Aimsley, a lovable rogue, is popular with the other men and this infuriates Southey, as do his black market activities. Southey informs on Aimsley as he tries to smuggle some black-market goods into England. Court-martialled and dishonourably discharged, Aimsley heads to Tahiti and enjoys a comfortable exile complete with Belle Annie, a local girl. Some time after the war Aimsleys idyllic lifestyle in Tahiti is rudely interrupted by the arrival of his old adversary Southey, now a successful businessman. Southey wants to build a hotel on the island but will his relationship with Aimsley help or hinder his plans!