MGee (Mike Giardello) and Ballard investigate a double shooting at the home of a prominent sports doctor and his wife, a dermatologist. The doctor (who was wounded) did not realize the deceased (thought to be a prowler) was his sister-in-law. Munch contends with the IRS; his Waterfront partners want him to make sure that his cousin, their accountant, has been paying their taxes. The Waterfront needs a loan to pay for some improvements. Gharty has taken the day off, to take care of personal matters, like his recent separation from Flora. Munch has his hearing with the IRS; he owes $30,000 in back taxes. Bayliss and Sheppard discuss his sexuality and the possibility of a date. Falsone takes MGee and Ballard to meet an old fight man who knew their doctor. Ballard becomes excited while watching Falsone spar in the ring. MGee and Ballard's investigation lead them right back to the doctor's house, where his wife may be guilty of conspiracy to commit homicide. Gharty stops by the Waterfront to check on Billie Lou's availability.