I'm going to trash this movie, but where do I start? Veteran character actor Hobart Bosworth plays a Park Avenue surgeon with a much younger wife (Claire Windsor). Doctor Walters has adopted a foster son; annoyingly, the foster son is named Foster. That's Raymond Griffith as Leonard Foster, the stepson. Griffith usually played dapper comedy roles; he's miscast here.
When the movie starts, Foster is already old enough to be out on his own, especially as he's a scoundrel. He seduces his stepfather's maid and secretary, then sets his sights on Dr Walters's wife, who is technically his own stepmother. Walters orders the young man out of his house (good move), but Foster promptly gets injured in an accident. Meanwhile, Dr Walters and his estranged wife get stuck in a lift, where they manage to reconcile. (I guess neither one of them has bladder trouble.)
SPOILERS COMING. When Dr Walters emerges, he learns that his stepson needs life-saving surgery ... and of course Dr Walters is the only surgeon who can perform it. Will he honour his oath, and save the life of the ungrateful stepson who betrayed him? Or will Dr Walters arrange a little 'accident' that will kill Leonard Foster? Hobart Bosworth performs his entire role in straight-arrow mode, so there's never any doubt. Nor much suspense, either. I'll rate this movie one point out of 10, mostly for its interesting cast. The script and direction are by Marshall 'Mickey' Neilan, but he did much better elsewhere.