This was thankfully short.
From 1944, Dark Mountain stars Robert Lowery, Ellen Drew, Regis Toomey, Eddie Quillan, and Elisha Cook, Jr.
Kay Downey (Drew) finds out her new husband Steve (Toomey) is a total gangster, dealing in stolen goods and stooping even lower - murder. He has to get out of town and insists she accompany him, when all she wants to do is leave, period. At a certain point, they separate - he gives her a way to reach him after things have cooled off.
Kay goes running to Don Bradley, who is madly in love with her and in fact, came to propose to her without realizing she had married. He is a park ranger and, finding out what happened, he sets her up in an unused cabin.
Little do either one of them know that Steve never had any intention of leaving Kay behind - he just wanted to know her hiding place so he could hide with her. Despite Don visiting the cabin and bringing supplies, Kay has to pretend Steve isn't in the next room.
B movie done on the cheap, and it's one of those public domain films. I am following a film noir list because I want to see as many as I can; unfortunately, some of them just aren't very good.