Down, Out & Dangerous (1995)

Brad, a happily-married businessman, meets Tim, a disturbed drifter and tries to help him. After a neighbor dies suspiciously, Brad mistakenly thinks covering it up will be best, but unfortunately Tim takes advantage of the situation and slowly wreaks havoc on Brad's once-perfect life--a life Tim envies. As Tim fails to take Brad's place at home, the lives of Brad's wife and unborn child are threatened.