Escape the Mansion Level 58 Walkthrough:
Tap the box under the bar chart. Enter the code 81527 (numbers on dice and order is shown on chart). Take the object inside.
Tap the black cord to plug it in, then wait for it to get hot.
Place the object on the burner, then wait until the object melts and turns into a key.
Tap the cord to unplug it.
After the key cools down, take it and use it on the door.
Proceed to the next Escape the Mansion level!