European pianist Franz Lister comes to the United States to give a concert for Mona Lansing, a former saloon hostess. When Lister's piano is stolen, Mona hires Paladin to get it back.

Paladin is invited to best man at Rivka Shotness' wedding. When he arrives he finds that Billy Buckstone, the man the bride's family helped to convict, has been freed from prison and is on his way back.

Paladin tries to stay one step ahead of a prankster who may be on the point of playing one prank too many.