Deal Goes Down By Beinhart, Larry

Ex-private eye Tony Casella is lonely old tough guy whose body can no longer do what it once did. His wife and son are dead; his daughter barely talks to him. But a chance encounter with a rich young woman on a train changes everything. He is hired to kill her superrich husband. That job leads to others and he joins a small start-up whose mission is to save women from abusive marriages - and make a tidy profit to boot. Tony's problems seem to be over, but are they?