The biggest problem I found with The Crooked Heart is wrapping my mind around the concept that Douglas Fairbanks, Jr. would ever need a lonely hearts club to meet women. That most elegant of stars is both a confidence man and a killer and he's set his sights on widow Rosalind Russell.
This was Russell's farewell performance and she and Fairbanks are the reason to watch this made for TV film. Even though it is plain that Fairbanks is after her money, that man is so charming who could resist. But Roz has plans of her own.
Also featured in this prominently are Ross Martin a detective who is investigating a string of disappearances of elderly women who were people of means. Also Maureen O'Sullivan has a prominent role as the organizer of the senior and middle-aged matchmaking service.
The method for killing these women I have to admit is ingenious. I'd watch this to see two of old Hollywood's best at their best.