Star of Midnight
New York lawyer and playboy Clay Dalzell (William Powell) is asked by old friend Tim Winthrop to locate his girlfriend Alice, who mysteriously disappeared in Chicago a year ago. Winthrop cannot stop thinking about her and believes she is in New York.
Along with Donna Mantin (Ginger Rogers), who has romantic designs on him, "Dal" attends a hit stage show called "Midnight" that stars a masked actress, Mary Smith, who vanishes in mid-performance when Winthrop recognizes her and blurts out the name Alice.
Gossip columnist Tommy Tennant claims to have discovered a vital clue to the mystery, but before he can reveal it, he is shot in Dal's suite. Dal is the main suspect, but Inspector Doremus does not believe him to be guilty, and gives the resourceful lawyer the freedom to investigate on his own.
Dal negotiates with gangster Kinland to retrieve letters embarrassing to Donna. When he gets them (using a bit of blackmail), he is annoyed to discover that they actually belong to a friend of Donna's.
Dal runs into an old flame, Jerry, now wed to a lawyer named Classon. Classon, it turns out, is also searching for Alice; she can provide an alibi for his client, convicted of a murder in Chicago.
Dal sets up a trap in a Greenwich Village apartment, pretending to have located the missing Mary there and notifying each of the suspects that she is leaving there to meet him at his suite. He reasons that those who are innocent will go to his suite, while the murderer heads to the apartment to silence Mary.
The killer indeed turns up, in disguise, putting Dal and Donna in grave danger. Fortunately, Dal and Inspector Doremus are able to subdue the culprit. It is Robert Classon. It turns out that Jerry had carried on affairs, first with the Chicago murder victim, then with his accused killer. Robert Classon killed one of his wife's lovers and tried to frame the other. To achieve the latter, he also needed to silence Alice, unaware that she had fled to avoid testifying. She hated the convicted man for ruining her father.
With everything wrapped up, Dal finally gives in and marries Donna.
murder