Master Key

Master Key is a unique item given to the Bachelor by an orderly during Pathologic: The Marble Nest after he examines Blacky's father.

While in the inventory, it will automatically open four locked doors without requiring the player to complete the lockpicking mini-game, with the durability decreasing after each use. The Master Key will disappear after its durability reaches 0, just like regular lockpicks.

Although the Master Key shares a model with Lockpicks the Haruspex uses, it cannot be equipped.