A man is found bludgeoned with a tire iron outside a lounge, after a night in the world of speed dating. A clue of acetone on the victim's car leads the team to a female suspect. She admits to dumping nail polish remover on his car after their break up, yet denies anything to do with the murder. A new lead has Horatio searching for two suspects after discovering that the victim had witnessed an assault outside of the Miami Heat basketball arena.