人生如梦，岁月如歌，珍惜每一个瞬间。寻找目击证人

　　Shortly after police discovers the murder of three friends, police inspector Wallander finds his friend and colleague Svedberg dead. At first believing that Svedberg killed himself, Wallander soon discovers links between Svedberg, the three friends and a fourth person, a young woman at a mental institution.