Louise Hill has the combination to the safe and is the bookkeeper for George Morrow at his investment firm. She goes to lunch, is hit upon by Herbert Winslow , gives him a brush-off and goes back to work. But she drops her purse containing the combination to the safe. That night, Winslow and his henchman Jim show up to rob the safe, but Louise is working late on the books. She discovers them, but Jim tells her that Morrow is one hard customer and when he finds his safe has been emptied, he will most likely have her jailed for theft, since she and Morrow are the only ones who know the safe combination. They leave with the loot, and Louise thinks maybe she might be better off gone herself, since she has no way to prove she wasn't involved. She calls her brother and heads for his mountain retreat and, via a telegram left on his desk, learns that he has gone to Chicago to sign a contract with his publisher. But his faithful dog Muro is there to greet her. But the big-city detectives have ...