Lindsay Boxer, Claire Washburn, and Jill Bernhardt cautiously introduce a new member, Cindy Thomas, into the Women's Murder Club. Jacobi works together with Boxer to solve a deadly crime of passion and jealousy. Jill makes some major domestic adjustments and Claire struggles to deal with her husband's depression. Meanwhile Lindsay's ex-husband, Tom Hogan, is brought into the department in a leadership role.
Lindsay works to find a killer who committed a horrifying triple homicide on a subway car, while Cindy goes in search of some elusive evidence to gain the respect of The Club. The ladies help Jill prepare to move in with her boyfriend. Lindsay has a chance meeting with her ex-husband's new fiancee. Claire struggles to keep her husband on track with his recovery.
Jill takes a huge risk in order to help a teenaged girl after her mother is brutally murdered. Meanwhile, Lindsay considers dating again and Claire attempts to bring the romance back into her relationship.
The Women's Murder Club investigates a drug ring that's being run out of a nursing home. Lindsay reluctantly accepts an invitation for a date. Jill takes a huge step in her romantic life.
Lindsay and Jill are forced to think about what they want for the future when they become involved in a case involving the murder of an expectant father.
An NFL star crosses paths with Lieutenant Lindsay Boxer when his close friend and fellow football player is murdered.
The murder club becomes embroiled in a messy immigration fight when the key witnesses to a murder are illegal aliens. Meanwhile, Lindsay is pleasantly surprised after she enlists Tom's fiancée to help with the case.
The Club investigates the murder of an illegal immigrant, where the only witnesses are the victim's father (who was also shot) and his young daughter. Meanwhile, Lindsay calls in Heather to get through to the girl, and Jill turns to Denise for help when an immigration official turns up.
The ladies investigate the mysterious murder of a drag queen. Meanwhile, Lindsay's ex-husband ties the knot, and Jill's fiance discovers a painful secret.
Just as Lindsay begins to think she can move on with her romantic life, she's warned that she could be in mortal danger, all while the Women's Murder Club investigates the brutal decapitation of a local wine broker.
Lindsay bends the rules to find a cop killer and gets and unwelcome visit from her estranged father -- whose reputation in the force is less than stellar -- and the strong arm from narcotics captain Bill Schroeder.
A member of the Women's Murder Club finds herself in a life threatening situation when the ladies investigate a revenge killing on a local college campus. Meanwhile, Lindsay gives serious consideration to taking her relationship with Pete to a new level.
After the "Kiss Me Not" killer resurfaces, Lindsay puts her life in jeopardy to save her father and catch the killer.