As the title may give away this film is a very early example of the suspense thriller. In it a woman is terrorised by a malevolent tramp. He stalks her while she is trapped helplessly in her house with her child. Her husband rushes to the rescue with the police in hot pursuit of him for stealing a car to race home.
It's a tight and well constructed film. It has very well paced editing that alternates from the scene in the house and the high speed car chase. It's shot with some skill too, with some inventive shots. There is a dynamic action shot taken from a moving car, including some stylish shots of the pursuers in the rear view mirror. Given the primitive equipment in those days this is pretty impressive. It also makes great use of the triptych split-screen effect which allows us to see three separate scenes simultaneously, conveying a lot of information simultaneously. This is one of the first examples of this technique. The feel of the film is a good combination of fast action and a brooding menace.
The main creative force behind all of this is Lois Weber, who also starred as the woman in distress. There are hardly any women film directors nowadays - which seems pretty outrageously sexist – Lois Weber was one of the very first though, so can be considered an important pioneer. Although, her gender aside, this remains a good film for its time.