In a secluded town, a young architect discovers a house with a mysterious ground floor that seems to defy the laws of physics and reality. As he delves deeper, he learns that the house holds a dark secret, and his own sanity may be the next thing to crumb...

In a seemingly ordinary apartment building, a series of unexplained events leads to a chilling revelation about the true nature of the ground floor. A young woman, determined to uncover the truth, finds herself entangled in a web of secrets and danger....