Ruthless People is a gripping romantic crime fiction set in modern-day Chicago, following the intense life and marriage of Melody Nicci Giovanni and Liam Callahan—rivals by blood and leaders through fear. Their marriage was arranged by their fathers in hopes of ending years of bloodshed between the Irish and the Italians.

Liam, next in line to lead the Irish, believes he's getting a simple-minded wife, one he can control, one who bends to his every need... but Melody is the complete opposite. Bred to be a Boss, a world-class marksman, master of disguise, with no mercy and no fear, she has achieved more than any man could even dream of, eliminating anyone who steps in her way.

With no other family left, she must not only learn to work with Liam but also with the entire Callahan clan. The Mafia of the past is evolving, and with rival bosses gunning for them, Melody and Liam will have to figure out how to work as one to take down those who stand in their way, all while keeping up appearances.

In this world, power, family, and respect are everything.