Watching over You

Anne and Julie have been Best Friends for years but things have been changing lately. Annes husband, Jim, has been drinking more and showing Julie a lot more attention. Anne keeps thinking that its her and shes just needs to be a better wife. Her need to always make things better clouds her judgment and she doesnt notice Jim & Julies inappropriate behavior with each other.
John has his dream job but things just havent been right for him for the last few months so he takes a leave of absence. He has one year to get things together. He takes a less stressful temporary job and ends up working with Jim where he becomes aware of the troubles between Anne and Jim and Julie. He meets Anne and is drawn to her in a way he cant explain. He wants to help her and protect her and finds himself having to make some odd decisions.
Dennis, Johns best friend, supports him and wants to help him anyway he can but is beginning to wonder if John is the mysterious motorcyclist hes seen at night in Annes neighborhood while hes on patrol.

Will things go too far between Jim & Julie?
Has John crossed the line of being helpful to obsessive?
Whos license plate number is on the note the nosey neighbor gave Dennis?