When a famous fashion designer is found murdered, Inspector Richard Queen of the NYPD is baffled by her dying clue, prompting him to bring in his son, mystery writer Ellery Queen, to help in the investigation.
After a wealthy industrialist threatens to disinherit family and staff at a New Year's Eve party, he is soon found murdered in a nearby phone booth by fellow guest Inspector Queen, who calls on son Ellery to help unmask the killer.
When an heiress is found dead from an apparent suicide, Ellery Queen suspects she was murdered, but the investigation is hindered by interference from radio detective Simon Brimmer.
A fishing trip for Richard and Ellery Queen soon becomes a working vacation when they are asked to help investigate the murder of a small town magnate.
Inspector Queen calls in his son Ellery to help investigate the murder of a newspaper publisher, who first disappears from his private express elevator then is later found there dead by gunshot.
Beloved Vera Bethune stars as Miss Aggie in a radio soap opera, but is about to be written out. One day she drinks water from a jug and is poisoned in a murder attempt. She is taken to the hospital and survives, but the killer returns.
Ellery's publicist becomes embroiled in a murder investigation when she finds the body of one of her clients, a World War II spy who recently wrote a tell-all memoir.
