is chasing down a suspect connected to the recent murder of Sister Sophia Brennan when she receives a call that someone has confessed to the shocking crime. Hollie should be relieved that this is the end of a gruelling investigation, but her instincts tell her something isn't right. As Hollie and her team uncover the truth behind the confession, they discover a web of dark secrets and unspeakable crimes haunting the now-abandoned Church of St Mary and the Angels mother and baby home. When Hollie starts to receive cryptic messages from a stranger leading her straight to the killer, she makes a disturbing link between her mysterious contact and the terrifying place where girls were sent to give up their babies. The killer may be within reach, but they're also tracking Hollie's every move, and they're watching her precious children. Can Hollie unmask the murderer before she and her loved ones find themselves in grave danger?