The wedding countdown is ticking down, but defense attorney Sally Castle is focused on work-not dresses-much to the dismay of her mother. Castle & Parson's latest client is afraid of illegal activities at the pharmacy where she works, although she admits her fears may be paranoia. As Sally digs into the facts, it seems certain the young woman is being set up to take the fall for the real culprit.

State Police Trooper Jim Duncan is used to responding to murders after the fact. When a man reports overhearing a threatening phone call from an unknown number, Duncan is intrigued, but without a dead body there's nothing to be done. That is until two days later when he responds to a suspected suicide that has all the earmarks of a staged scene.

When drugs found at the dead man's house are connected to the pharmacy in Sally's case, the questions become even more complicated. Now the two must unravel the tangled web to find a murderer and keep a young woman from being convicted of a crime she didn't commit. All before the killer interrupts their trip to the altar-permanently.