Juntaro Higuchi (Naoto Fujiki) is not only a soba shop waiter, but he is also a talented detective who can solve various tricky cases with his unique ability to see through lies, even though he has never expected to be like that. Worried about Juntaro's way of life, his sister and psychic, Itako (Keiko Horiuchi), comes to his place from Osorezan, a holy mountain where spiritual mediums live. Following Itako's prophecy, Juntaro sets up his soba stand at different places together with two other IKE-MEN -nice looking guys- (Nobuo Kyo, Kazuma Kawahara).

One day, Juntaro delivers soba on his beloved bicycle as usual. Then he happens to get involved in a case and even mistaken as a criminal by Kuroda Kinzo (Katsuhisa Namase), who used to be a manager of a talent agency, Ikeda Talent Promotion, one of Juntaro's customers. Juntaro manages to escape by the skin of his teeth. While he is running away from the site, he meets by chance with Masahiko Ikeda (Arata Furuta), president of Ikeda Talent Promotion...

Unique people come to him bringing strange and funny matters for him to solve. With his exceptional ability, will Juntaro be able to solve them? Or not...?

This is a mystery drama in which there are a lot of Laughs, laughs, laughs...and more!

表面上樋口润太朗（藤木直人　饰）只是一个平凡不过的荞麦面店的店员, 但因为他有着看透别人心灵的能力, 能辨别出别人在说谎言还是实话, 故此他背后也是一名侦探。润太朗经常被委托处理各种各样的疑难奇案,他也能顺利地破案, 亦因此而爆出不少的笑料。

润太朗的姊姊至子（堀内敬子　饰）因为担心润太朗, 某日突然到访他的家, 并提议他与其它店员在不同的地区摆放流动面店。

某日, 润太朗准备用自行车往外送面前, 大队警察却在润太朗的面店外大叫着：

「青年, 你已被包围! 请你尽快放出人质, 并且走出来!」

原来大叫的一就是常常光顾润太朗面店的前艺人经理人公司的黑田金造（生濑胜久　饰）, 现在却成为了警察队目。根据他的下属的情报, 疑犯是在面店中, 并相信那人是润太朗。润太朗骑着自行车逃避警察的追踪时, 偶然遇到池田政彦（古田新太饰）, 他就是黑田以前打工的经理人公司的老板。

另一方面, 一个吹奏笛子, 行为古怪, 名叫细口（竹中直人　饰）的人来到店中。作出不同的奇怪言行, 令一众店员担心不已……到底细口来面店的目的是什么呢?

此剧集中, 每集也会有一名特别嘉宾演出, 内容搞笑, 暗藏笑料, 务求令观众开心在30分钟内得到最大的欢笑。