Horace Warren pays five hundred dollars to have Perry Mason attend a buffet dinner to observe his guests. He also wants Mason to investigate a fingerprint and suspects his wife is being blackmailed. Mrs Warren's mystery past may hold the clues.
Perry Mason is hired to protect Mae Farr from a presumed stalker, wealthy playboy Penn Wentworth. When Mason learns that Wentworth wants Mae for forging his name on a cheque, things get complicated.