Youssef, a professional liar, falls in love with airhead waitress Andrea. Things get awry as she never wants to date a guy who keeps secrets or lies.

A society girl is suspected of murdering an artist whose brother is a notorious racketeer. In her pursuit of an alibi, she inadvertently implicates a struggling advertisement photographer. Now they must keep up the appearance of being engaged as a bumbling detective snoops around, and their initial distaste for each other blossoms into romance.