印度塔尔沙漠上有一座古堡。古堡门前有一条告示:过往人畜切莫在此留宿!因为凡是夜间在此地住宿的都丧生在古堡之下,死者身上找不到任何伤痕。印度警方束手无策,向全世界发出悬赏布告:“凡破古堡谜案者,奖金3万卢比!”英国乞丐模样的老人汤恩愿侦破此案。一个月明星稀的夜晚,汤恩带着一只铁箱和一张渔网,牵着一只猴子走进古堡。 There is an ancient castle on Thar desert in India. There is a notice in front of the castle: past people and animals should not stay here! Because all overnight accommodation in this place have died under the castle, the body could not find any injuries. Indian police are helpless, issued a reward offer to the world: “Where break the castle mystery case, the prize of 30,000 rupees! ” British beggar looks like elderly Tom is willing to crack the case. A month starry night, Ton with a metal box and a fishing net, holding a monkey into the castle.