Three Sisters Investigate(1998)

Three Sisters Investigate follows three siblings—a junior high student, a high schooler, and a college student—who stumble into detective work while searching for answers about their father's murder. What begins as a personal quest quickly spirals into something larger as the sisters find themselves entangled in multiple criminal cases. Forced to rely on each other and their wits, they gradually transform from ordinary teenagers into amateur sleuths. The series balances coming-of-age drama with mystery and suspense, exploring how tragedy can reshape young lives and forge unexpected bonds. As the sisters dig deeper, they discover that solving their father's case may require them to uncover far more than they bargained for.