Based on the hit UK television series of the same name, Mistresses is a provocative and thrilling drama about the scandalous lives of a sexy and sassy group of four girlfriends, each on her own path to self-discovery. Season 1: Savannah ("Savi") is a successful career woman working toward the next phase in her life -- both professionally and personally -- bucking for partner at the law firm where she works while also trying to start a family with her husband, Harry. They've been trying to get pregnant for some time, but when their fertility issues begin to take center stage, Savi finds herself attracted to her flirtatious colleague, Dominic. Savi's free-spirited and capricious baby sister, Josslyn ("Joss"), couldn't be more different, living single, serial dating and partying, and regularly leaning on her big sister. A real estate agent, Josslyn has no interest in a committed, long-term relationship. Their common best friend, April, is a recent widow and mother of a ten-year-old daughter. In the effort to rebuild her life and move forward, April opens a shop for home decorating. After she receives her late husband's lucrative life insurance check, she begins getting prank phone calls and tells her closest girlfriends that she's convinced her husband is still alive. Karen is a therapist with her own thriving practice, reconnecting with the girls after her involvement in a complicated relationship with a wealthy, married patient goes too far; she was having an affair with a terminally ill client to whom she had prescribed morphine. After his death, the man's distraught son, Sam, confides in a guilt-ridden Karen, unaware of her role in his father's life. The grieving widow, Elizabeth Grey (recurring guest star Penelope Ann Miller [The Artist]), has no idea her late husband had a romance with another woman. These four friends find support and guidance with each other as they brave their turbulent journeys and life's storms of excitement, secrecy and betrayal, all the while bound by the complex relationships they've created. See the Season 1 Episode Guide. Season 2: The second season begins eight months after Savi survived a harrowing car crash. She officially moved away from Harry and onto Dom. Savi is forced to share an office with sexy, boisterous Toni, who has an agenda. She enters into a friendship with Zack, the driver of the car that crashed into her. The two of them share a bond of survival. As for Dom, he joins forces with Savi to expose the scheming Toni to the rest of the law firm, but their relationship is still pretty much over. After the death of Sam Grey, Karen takes on a patient, Anna, who leads a double life as escort. She begins using assumed names to have one night stands with men she picks up in bars. Karen later dates her former business partner, Jacob, who actually dated Anna. This little love triangle eventually evaporates. Anna returns to her home country and Jacob moves to Boston. As for Karen, she fears her bout with promiscuousness may have led to her being HIV-positive. She's not sick, but the doctor does have other news for her. April hooks up with "sexy smoldering" artist Daniel. Things are hot and heavy until the truth about the mystery man comes out. Daniel is with the FBI. He's part of a team trying to bring in the criminals associated with April's ex-hubby, Paul. Dom gets the feds to stop strong-arming April. Daniel is fired from the FBI, but ends up protecting April from the mob men who ultimately kill Paul. Joss strikes up a business partnership with Harry, who agrees to be caterer in her party planning business. She also begins a relationship with plastic surgeon Scott, who is really into women's shoes. The doc doesn't wear them, he just loans them to the ladies he beds. Joss and Scott get engaged, but the bride-to-be wrestles with some undeniable feelings she has for Harry. These feelings come to a head on her wedding day. See the Season 2 Episode Guide. Mistresses stars Yunjin Kim as Karen Kim, Rochelle Aytes as April Malloy, Jes Macallan as Josslyn ("Joss") Carver, Brett Tucker as Harry Davis, Jennifer Esposito as Calista Raines and Rob Mayes in the role of Marc.