Murder Out of Turn

"Mr. and Mrs. North have invited their closest friends--an ex-aviator, a mysterious doctor, and NYPD's own Lt. William Weigand--to join them on [a] glittering retreat, but the joviality ends when Weigand finds Helen Wilson lying across the path, a knife buried in her neck. A member of the group surely killed her, and unless the Norths act quickly, the murderer will strike again"--Back cover.