One of the most prestigious doctors in the hospital of a provincial capital is murdered. A great stir is caused among the nuns that run up and down the labyrinth of corridors, since they cannot understand how such a well-loved man could have also been so hated. An investigation leads to the discovery of four love stories, as intricate as the labyrinth that surrounds them. Lorquita, a marginal and slightly mad character who is sheltered by the nuns and helps them in their tasks, is found guilty. What role could he play in that knot of desires and destinies? Egido explores the ambiguity of human behavior that frees the individual from ideological, moral, and social bonds, making him take hold of his own fate and assert his right to happiness.