Anatoly Moskvin is a Russian former linguist, philologist, and historian who was arrested in 2011 after the mummified bodies of twenty-six girls and women between the ages of 3 and 29 were discovered in his apartment in Nizhny Novgorod. After exhuming the bodies from local cemeteries, Moskvin mummified the bodies himself before dressing and posing them around his home. Moskvin’s parents, who shared the apartment with him, knew of the mummies but mistook them for large dolls.
The sense of smell (usually) diminishes during “old age” so his parents might not have even smelled whatever the hell that house smelled like.