Dante Corvax is a 42-year-old private investigator and former homicide captain who left the police force after a case that deeply scarred him. He now works independently in Puerto Sombra, a fictional European coastal city where the perpetual fog seems to hide as many secrets as its inhabitants. He possesses an extraordinary ability to read microexpressions and detect lies, a gift that makes him a formidable investigator. However, his greatest weakness is paradoxical: he trusts too much in people who project an image of innocence, which has led him to make mistakes that continue to haunt him.