The Wild Zone by Joy Fielding

I always enjoy Fielding's books and this was a wild one (pun intended). Will has come down to South Beach to stay for a while with his half-brother, Jeff. They have not had much communication over the years and they are really different from one another. Will is recovering from a broken heart. Jeff is a bit wild and crazy (not in a good way!). He saw active duty in the military and it has left some scars. He lives with sexy Kristin who is a bartender at the Wild Zone but they have an 'open' relationship. One night at the bar, they are joined by Jeff's best friend, Tom. Tom also was in Afghanistan until his actions with a girl cost him a dishonorable discharge. He is unhappily married with two kids and a lot of guns. That evening Jeff and Tom drag Will into a crazy bet concerning a good-looking patron at the bar. Her name is Suzy and she seems to have a magical effect on the whole group. On the inside she is hiding the secret of her abusive husband.
That evening leads to a fast-paced adventure with some twists and turns in the plot. I really liked reading the book even though Will was the only character I liked at all. Don't spend time trying to figure out what is going to happen.... you won't!