The Crime Doctor's Courage

The Crime Doctor (Warner Baxter) has his vacation interrupted by Hillary Brooke (Lorelei from the "Big Town" series). She's just married a wealthy man, only to find out his first two wives died mysteriously on their honeymoons. At a party, her husband his confronted by his former brother-in-law. He dies in a locked room of an apparent suicide. The Doctor isn't so sure. He enlists the help of a fellow party guest, mystery novelist Jerome Cowan. Lupita Tovar (from the excellent Spanish language version of DRACULA) and Anthony Caruso are a brother and sister dance team who just might be vampires.

There's some outlandish ideas, a foray into the supernatural, however the plot is all over the place, and it loses some steam after a good 30 minute start which grabs you. The denouement is weakly explained. But the vampire angle, some action and Warner Baxter performance keeps things watchable.