Alex joins his father on a business trip to Amsterdam. During the day he hangs out with the daughter of a family friend. They visit the usual sights but also coffee shops & flea markets off the beaten track. At one of these markets Alex spots an ancient-looking mask. Before he knows what hes doing he buys it. Later in his hotel room he feels compelled to put the mask on. Alex is sucked into a parallel Amsterdam one from centuries before which begins to reveal the dark past of both the building he is staying in & the little girl who once lived there.. .edging stealthily towards the terrible twist.