Cop's Daughter 4: Diana

Detective Diana Pellino wonders what is more emotionally draining: being a homicide detective on the city streets of New York, or dealing with her overprotective family and its practically indestructible bond. When that bond is challenged, things turn ugly, as relationships are questioned along with alliances. Diana and her partner are investigating a new serial murder case. There's no pattern or motive behind each killing. As if things couldn't get worse, her commander's estranged son, Luke Fontella, Fire Marshall, keeps getting in her way. He is overbearing and manipulative, yet so irresistibly handsome. When the serial killer decides to step things up a notch, by burning his victims to death, Detective Diana Pellino and Fire Marshall Luke Fontella must work together to crack the case. The strength of family bonds are tested, and the heat turns up during the investigation, as an inferno of desire ignites between Diana and Luke.