I watched a movie on TV in the late 90s or early 2000s. It was a thriller-ish genre that scared the crap out of me as a kid. A man living in the suburbs was being harassed by his pesky neighbor. A very insistent handyman was offering his services and observed the conflict with the neighbor. The handyman then murders the neighbor as a ‘favor’ to the man and throughout the movie proceeds to steal his identity.