Dan Sullivan (Gene Raymond) is an insurance investigator. He's working on a case and the trail leads to a small hotel. However, once he's there, he realizes he's in way over his head, as a gang of very dangerous criminals are hiding out there. In fact, one is badly injured and possibly dying. Due to a mixup, the criminals THINK that Dan is a doctor and they force him to care for their injured boss. He realizes that he better go along with it, as they'll surely kill him if they find out his's not able to help them. So Dan has to bide his time...waiting and hoping for an opportunity to escape.
The plot is much like that you see in "The Desperate Hours"...simple but very exciting. In fact, it's much better than the average B-movie....much of it due to the wonderful moody atmosphere. Well worth seeing.