Cocky Biff Williams, a high-rise iron worker, on his perch 24 stories above the New York City street, flirts with a beautiful woman, Lynn Crawford, in an office-window nearby. She turns out to be a real-estate racketeer and, later when they get together, talks Biff into investing his life savings in lots that have no title, but Biff is unaware of this. He also talks his fellow workers into the crooked deal. When the deception is discovered, his fellow workers who have always considered him "on the level" think he was part of the swindle and come after him. To save his hide he must get the money back, but Lynn and her confederates are at Grand Central Station about to board a train for Canada.