In 2014, Mikhail Chelyshev entered his cellar where the potatoes were stored because. However, after entering the cellar, he collapsed and died.

His wife and son went to check what had happened to him, they also collapsed and died.

Their 68-year-old grandmother called for assistance, but she descended into the cellar before help could arrive.

Unfortunately, she faced a similar fate, collapsing and succumbing to death.

The family made the mistake of storing their potatoes in their enclosed cellar and allowing them to decompose which caused highly toxic fumes to develop.

Mikhail’s 8-year-old daughter, Maria Chelyshev, was the only one who didn’t enter the cellar and so she survived.