The first in a Lovecraftian Spanish film epic, The Valdemar Legacy is a big budget love letter to the world of H.P. Lovecraft, featuring the last screen role of genre legend, Paul Naschy, as well as séances, the Necronomicon, Ghouls, and a family curse. Luisa Llorente, an expert on taxation of old buildings, had recently gone to the Victorian mansion Valdemar to conduct an inventory of property ownership. After she mysteriously disappeared, Maximilian, president of her company, engaged the services of a private detective to help find her. But soon they will discover that it is not the first disappearance at Valdemar mansion!