Moira Gallagher has been conversing with ghosts since she was five. Now as an adult, she's finally putting that gift to good use. Moira's ability to talk with the dead gives her fledgling detective agency, Gallagher Investigations, an edge in uncovering secrets the past has buried. With the help of her sisters, Nuala and Deirdre, she assists those unsettled spirits in finding peace by righting the wrongs done to them before they found themselves on the Other Side. Moira is convinced that the departed spirits don't have the power to harm the living ... until they do. The past collides with the present as these endearing Irish sisters solve cold-case murders and mayhem through their dreams, paranormal visitations, and a healthy dose of spunk; and in the process, discover how much they need each other as they join forces against their adversaries, both spectral and human.