Hear those footsteps in the dark? They signal thrills, laughs and mystery as swashbuckler Errol Flynn steps out of tights and into a dinner jacket for a jolly round of sleuthing. Flynn plays a blueblood who juggles two identities: his public persona as a white-shoe investment counselor and a secret life as a detective novelist. The fun begins when he stumbles into a real case of murder that leads him to danger, a date with a over-the-hill stripper and domestic strife (his beautiful wife wonders exactly where he's going in the middle of the night!). The fine cast includes Brenda Marshall (Flynn's The Sea Hawk co-star) and an actor who knows all about clues and corpses - Ralph Bellamy, the screen's Ellery Queen.

In an atypically nonhistorical role, Flynn plays investment consultant Francis Warren leading a double life as a suspense crime author. Playing detective at night to gather information for his stories, Warren works unbeknownst to his sleeping wife. He becomes implicated in an actual murder, and must do his own investigating to save his marriage and life.