简要：When their mother was hospitalized for a car accident, Pim and Putt suddenly found out that they had a pair of grandparents they had never known. But a terrible truth has been hidden in the wall of their grandparents' house for a long time. This truth has gradually been revealed to Pim and Putt, and through a mysterious hole, it has brought their family creepy fear.
When their mother was hospitalized for a car accident, Pim and Putt suddenly found out that they had a pair of grandparents they had never known. But a terrible truth has been hidden in the wall of their grandparents' house for a long time. This truth has gradually been revealed to Pim and Putt, and through a mysterious hole, it has brought their family creepy fear.展开
