With his team of serial killers failing, the Zodiac Master decides to make Scorpio's month his own personal mission.

Although Ryan's new baby infuses hope into the team, Leslie can't help but feel as if the worst is yet to come. For months they have been chasing down dead ends to find the Zodiac Master's lair. It's time this evil empire was brought down for good.

When the Urban Energy Corporation shuts down, it seems all their hard work is for nothing with someone in jail. With no new leads, Ryan and Leslie focus on finding the mole in their department. They comb through every file to gather crumbs hoping it would result in more leads.

While Ryan and Leslie are cleaning house the Zodiac Master decides it's time to take action. It's time Leslie and Ryan gets his message once and for all, even if it means blowing his cover for good. He devises a new game, one that will have Ryan and Leslie begging for his mercy and not his submission.

Will the dynamic duo be able to face the challenge that is upon them?

Paris Morgan takes you on a rollercoaster ride of intrigue, murders and a gripping psychological thriller in the tenth installment of the Murders of the Zodiac. The Master of the Zodiac is done with petty little games, it's time to bring an end to this dynamic duo once and for all.