Mannix launches a double-edged search for Brad Turner and Jimmy Whitewing, two friends of Peggy's, who are wrongly accused of murder, and for the real killer who can only be linked to the crime by a dancer. Brad and Jimmy seek refuge in Peggy's apartment, but flee when Mannix offers to help them under the condition they tell their story to the police.

Mannix's mentor is thrown to his death from a high-rise apartment, and the primary suspect asks Mannix to find a woman who can clear his name.

Joe's old flame Jean McBride asks Mannix to return to their hometown and clear her husband of a murder charge.