New Year Boulangerie Escape

‘Where is the cake?’ someone asked. ‘It has not been brought from the Boulangerie’ someone replied. Then your mother told you to rush to the nearby cake shop and get the cake from there. The shop belongs to your uncle. You reach there in a flash and enter through the open door. Without realizing you shut the door behind you and after getting locked inside you find no one inside the shop. You try hard to open the door but no luck and then you remember that uncle had once told you that there is a spare golden key that keeps inside his shop. The key must be found if you want to get out of the shop and join your family and friends for the New Year’s Party.