Escape Game Funeral: The Mourning Widow

In one’s lifetime, a visit to the funeral palour is inevitable. One day, you receive a letter from your friend’s wife, informing you of your friend’s death. Successively, mutual friends receive similar letters. Tonight is the setting up of the wake. Following the address stated in the letter, you make your way to attend the wake. As you enter the mourning hall, you feel a strange sense of discomfort. You decide to call your friend’s wife but there is no response. With no alternative, you make your way in alone, wanting to pay your last respects to your dear friend. The room where your deceased friend’s body lie, it is locked! What is going on??