Warehouse Key

Warehouse Key is an item in Pathologic, but it is not obtainable through normal gameplay. Although the item is spawnable using Console Commands, it is not used for anything and is not related to any quests or in-game events.

Quote
"Unlikely to be usable for all warehouses. Most probably it will only open the warehouse where its unfortunate previous owner used to work."

Note

 * In-game dialogue and the hover text suggests that at some point, the player would have been able to purchase or receive a warehouse from an NPC.