What if the walls were built to hide more than secrets? When struggling architect Adrián Romero accepts a remote renovation project on the sun-scorched island of Mallorca, he expects cracked foundations and structural decay-not a hidden chamber sealed inside the walls. Behind it lies a mummified body. But the real horror isn't what's inside the tomb. It's who designed it. As Adrián uncovers blueprints tied to his late father-an architect for the island's most powerful families-he stumbles into a buried network of secret rooms, unsolved disappearances, and elite corruption. The deeper he digs, the clearer it becomes: these spaces were never meant to be found. And now that he's opened one… someone is watching. Hunted by powerful families and haunted by his own bloodline, Adrián must decide: expose the truth-or become part of the silence. Negative Space is a dark psychological thriller blending architectural mystery, buried crimes, and neo-noir tension-perfect for fans of slow-burn suspense, hidden conspiracies, and morally complex protagonists.