Murders in Silk

MURDERS IN SILK
Tie Bixby spots the woman with the red hat getting on the train. But the guy she's trying not to be seen talking to is strictly a lug. After she comes out of the ladies' room and announces that there is a man with his throat cut inside-that same lug-Tie figures she's up to her neck in trouble. That night, while visiting Pa, there is an explosion next door-an inventor is burned to death in the fire-and Tie sees the woman in the red hat fleeing the scene.
He could tell the cops about her, but he decides to not to. He decides to play it cagey for awhile, and help her out. There is definitely a mystery here. Why does the inventor's daughter hate him so much? And why is a gangster's lawyer hanging around the scene of the crime? And who is the guy who was murdered on the train? Most importantly of all, what does the woman with the red hat have to do with all of it?