Tea Time at Mr. Wig

Your colleague's invitation came as a surprise. He is an inconspicuous, somewhat strange loner and does not necessarily belong to your circle of friends. However, you decide to give him a chance and accept the invitation. Now you are here, in his living room. The table is set, but when you leave the room he locked you in. Why is he doing this? Find his frightening secret and find your way out of the room.