Boys' Night Out (1962)

Fred, George, Doug, and Howie, approaching middle age, find themselves yearning for excitement beyond the confines of marriage and routine. While three are settled into family life, the bachelor Fred leads them into a covert arrangement: they rent an apartment with the alluring Kathy for clandestine escapades. Unbeknownst to them, Kathy is a sociology student studying the sexual dynamics of white middle-class men, adding an unexpected twist to their escapades. As their secret lives unfold, the men grapple with the consequences of their choices amid the complexities of love and fidelity.