An anti-collision device that might eventually prevent midair accidents turns into a motive for murder.
A young woman, in search of her father whom she has never seen, seems to be the target for murder.
A professional golfer is murdered following his biggest victory and the young opponent he defeated is charged with the crime.
A Chinese-American woman hires Perry Mason to locate a valuable collection of diamonds missing from her grandfather's Hong Kong residence.
The misadventures of two women and one man living in one apartment and their neighbors.