Lin Miao takes over the Wuyin Villa homestay left behind by his grandfather, where an old-fashioned fishing rod warned never to be touched hides a secret. After old classmate Zhou Yue ignores the warning and uses the fishing rod, he mysteriously drowns, and Xia Wei is also murdered in succession. Everyone is shrouded in the so-called curse of the fishing rod. Lin Miao starts an investigation to clear his name, peeling back layers of mist to discover that the so-called curse is only an illusion. To avenge his victimized younger sister, Lu Xun planned two murder cases. In the end, physical evidence is found, Lu Xun's crimes are exposed and fall into the net of the law, the villa returns to peace, and Lin Miao also unlocks the secret left by his grandfather.