Lucille Teresa Guardino. A woman of many identities. Lucille to her doting mother, Lulu to her devoted husband, Mom to her pre-teen daughter, Lucy to her friends, LT to her co-workers, and Supervisory Special Agent Guardino to the criminals she captures for the FBI's Sexual Assault Felony Enforcement squad. A loving mom and wife, dutiful daughter, consummate professional, and kick-ass federal agent, Lucy is living the perfect life. Until the day she comes up against a predator more vicious than any she's ever tackled....

Nerves of Steel introduces Dr. Cassandra Hart, a Pittsburgh ER doctor who discovers that her very own hospital is the source of a deadly street drug. When her best friend is murdered and Cassie starts getting death threats, she must trust Detective Mickey Drake to protect her. Yet even as a passionate love affair blossoms between them, a relentless killer draws ever closer.

Dr. Leah Wright returned to her childhood home in rural Pennsylvania with her husband to find peace and quiet, start afresh, and raise her six-year-old daughter Emily. But when she gets home one dark winter night, clutching roses in her hand, she finds her daughter huddled under her bed and her husband’s blood all over the floor.... When Detective Luka Jericho is called to investigate, he’s shocked to learn that the killer left a witness behind - the victim’s young daughter.

What would you do if the man of your dreams hides the soul of a killer? Jim Beckett was everything she'd ever dreamed of...But two years after Tess married the decorated cop and bore his child, she helped put him behind bars for savagely murdering ten women. Even locked up in a maximum security prison, he vowed he would come after her and make her pay. Now the cunning killer has escaped - and the most dangerous game of all begins....

Attorney Rhonda Bird returns home after a long estrangement when she learns her father has died. There she makes two important discoveries: Her father stopped being an accountant and had opened up a private detective agency, and she has a teenage half sister named Baby. Baby brings in a client to the detective agency, a young man who claims he was abducted.