"Southern Seas" is a detective novel set in post-Franco Barcelona. The story revolves around a private detective who is hired to investigate the mysterious disappearance of a wealthy man. As he delves deeper into the case, he finds himself entangled in a web of corruption, violence, and deceit, revealing a dark underbelly of the city's elite society. The narrative is deeply political and social, exploring themes of power, class, and the legacy of Franco's dictatorship in Spain.

In a small Swedish town, the body of a young woman is discovered in a bathtub, her wrists slashed. Local detective Patrik Hedstrom is assigned to the case, and as he delves into the investigation, he uncovers a web of secrets and hidden motives among the town's residents. With the help of crime writer Erica Falck, Patrik must navigate through personal and professional challenges to unravel the truth behind the tragic death of the ice princess.