In this prequel to the international best seller The Ruin, set 10 years prior, bright-eyed Carrie Ryan is at the very start of her career. When she has a hunch about an ongoing murder investigation, she knows it could be her only chance to prove herself and truly break into the “boys' club” of Dublin’s police force.

Flynn was only a teenager when her parents were killed in a terrible accident. Too young to lose her parents, too young to take on responsibility for her younger sister Kaiya, too young to protect Kaiya from the harshness of their new lives in the following years. Desperate to help her sister, Flynn reaches out to Willa Tomlinson, a grief counsellor renowned for helping her patients cope with profound loss. Under Willa’s influence and care, Kaiya finally seems to turn a corner, joining the climate action collective that Willa leads.

When Nigel Baxter, a middle-aged married banker with an unremarkable past, is found dead in the bath of a plush hotel suite, his wrists slit, it looks as if he's taken his own life. At first. But when Detective Inspector Daniel Riley is assigned to the case, he soon realises all isn't as it first appears to be. When a postmortem shows Baxter was poisoned, Riley suspects foul play. And then there's the odd addition of a teddy bear left at the crime scene....

The Girl of Sugar Beach is the most watched documentary in television history - a riveting, true-life mystery that unfolds over 12 weeks and centers on a fascinating question: Did Grace Sebold murder her boyfriend, Julian, while on a Spring Break vacation, or is she a victim of circumstance and poor police work? Grace has spent the last 10 years in a St. Lucian prison, and reaches out to filmmaker Sidney Ryan in a last, desperate attempt to prove her innocence. As Sidney begins researching, she uncovers issues that were all overlooked during the original investigation.

As a forensic reconstructionist, Rory Moore sheds light on cold-case homicides by piecing together crime-scene details others fail to see. Cleaning out her late father's law office a week after his burial, she receives a call that plunges her into a decades-old case come to life once more.