Born and raised in Chicago to Irish immigrant parents, Dr. Kate Ryan is forensic pathologist and medical examiner for the Chicago Crime Lab, consultant to Ireland's national police force the Gardia, and part time FBI profiler with the bureau's Behavior Analysis Unit. Kate was born with many 'gifts' as her maternal grandmother 'Grand' calls her psychic abilities. She and her fiance Tim "T.D." Sullivan, a former member of the Chicago Police Department, are the perfect team to track down criminals using Kate's psychic gifts, their secret weapon, her guardian angel, and Tim's special link to the other side of the veil between the living and the dead. Tim is a ghost.