[1] A man (Miki Manojlović) is forced by poverty and desperation to use a children's plastic gun to rob a small bank and gets captured.

He starts a romantic relationship with Zdenka, a factory worker, but still has strong feelings for his ex-wife Nina, who is now a mistress of Ivan, a well-to-do man.

At the same time, Zdenka remains the love interest of Jozo, the factory doorkeeper...[2] The film won the FIPRESCI, Grand Prix and the Peter Karsten award for 'Best Script' by the International Federation of Film Critics for Rajko Grlić at the 1986 Valencia Festival of Mediterranean Cinema.

[3] Croatian film historian Ivo Škrabalo compared Three for Happiness unfavorably to Grlić's earlier works, noting more simplistic direction and failure to fulfill the genre's determinants.

[2] Eleanor Mannikka of All Movie Guide wrote that the film "is an amusing and enjoyable romantic comedy buoyed by witty dialogue.