亨卡与基维穆特卡侦探社，破解谜团，揭示真相，勇敢无畏，伙伴情深。腿再打开一点

　　Henkka Virtanen finds evidence of a possible crime on his way to school. With his friend J.K. Kivimutka, the boys decide to investigate what has happened, because these criminal cases are the responsibility of the detective agency they have set up. When it turns out that mailboxes in the area have disappeared during the night, the detective bureau has already two crimes to solv... (展开全部)