"Walter" (John Beal) returns home to his father's home ready to console him for losing all his money after the collapse of the Southern Valley Electrical Company. Surprisingly, though, he finds "John" (Douglass Dumbrille) in good spirits having seen the writing on the wall and sold his stock earlier. Disgusted that this will leave the other stockholders ruined, he heads to the home of his gal "Marian" (Linda Hayes) whose father "Ray" (H.B. Warner) is having to sell up to pay his $200,000 debt. This is where the eponymous PI (Ralph Bellamy) comes in. The young man engages him to buy up the estat...