Hidden human feces are to blame for a strong stench at newly built apartment buildings in South Korea. A resident requested an inspection of their new residence in May after noticing a "strong stench" coming from the walls. The construction company inspected the building earlier this month and discovered three bags filled with human feces. The bags were found in the ceiling of the master bedroom's closet. It's believed construction workers left the bags while working on the apartment's interior. The construction company has attempted to deodorize the building, but the resident says the stench remains so strong that it gives them a headache.