Everybody has a secret. Two years ago, psychologist Natalie Marsh's dying mother disinherited her and left everything to her sister. Still dealing with the pain of rejection, Natalie struggles with feelings of envy and discomfort toward coworker Skyler Hudson, her late mother's trusted therapist who knows the worst of the family's rift. Fresh personal challenges begin heaping on top of professional ones when Natalie's best friend, Camille Moretti, confides that she thinks someone is stalking her— and she's not the only one in danger. When tensions rise and everyone has something at stake, is there anyone Natalie can trust? Or will she find herself slowly drowning in the mysteries?