Éva Balogh travels to Pest to attend her friend's wedding, but the wedding is cancelled because the groom backs out at the last minute (for the third time). Éva mistakenly blames Paul Murray, the world-famous pianist, for the broken marriage promise. The pianist, who changes his girlfriends frequently, mistakes the temperamental, snappy jazz girl for one of his forgotten old flames. By the time the truth comes out, Eve and Murray are in love, and another slap - now undoubtedly for Murray - can't keep them apart.