General Fitzjohn (Peter Sellers), a lecherous old military man who daily suffers the nagging of his bedridden wife (Margaret Leighton), fondly remembers the time he spent with his young mistress Ghislaine (Dany Robin). After many years, Ghislaine then arrives on his doorstep determined to recommence their relationship, but the General is called away and leaves Ghislaine in the care of his right-hand man. Farcical complications ensue.