Mrs Stack is a patron of a hospital who gets suspicious of how that establishment is being run. She calls Inspector Queen to provide her with a policeman who doesn't look like a policeman to make an undercover investigation there. Inspector Queen sends his son Ellery who manages to get himself admitted as a patient at the hospital. Mrs Stack is soon a patient there herself after getting hurt in a car collision. It's soon obvious that more than just one person is out to kill her before she is found dead after an operation.
You may find that this is one of the weaker of the seven Ellery Queen mysteries of the 1940 to 1942 period. It suffers from having too many comic characters involved. It's always good to see the saner presence of George Zucco who appears as the doctor under suspicion in this. His hospital becomes a bedlam of trolleys being switched and people under shrouds posing as corpses in order to hide themselves. And then there's people posing as nurses including a crook who does an unconvincing job on that score and also Ellery Queen's secretary who manages to get herself in uniform as well.
There are a number of characters who have murder as their intention. So it makes it difficult to guess the one who is actually responsible for the murders. I didn't get the killer until just before the reveal. Thus this film does satisfy as a whodunit even if you may tire a little of the comic knockabout.
You may find that this is one of the weaker of the seven Ellery Queen mysteries of the 1940 to 1942 period. It suffers from having too many comic characters involved. It's always good to see the saner presence of George Zucco who appears as the doctor under suspicion in this. His hospital becomes a bedlam of trolleys being switched and people under shrouds posing as corpses in order to hide themselves. And then there's people posing as nurses including a crook who does an unconvincing job on that score and also Ellery Queen's secretary who manages to get herself in uniform as well.
There are a number of characters who have murder as their intention. So it makes it difficult to guess the one who is actually responsible for the murders. I didn't get the killer until just before the reveal. Thus this film does satisfy as a whodunit even if you may tire a little of the comic knockabout.