No Clue

In a case of mistaken identity, a salesman is hired as a private detective by a woman to find her missing brother, and complications ensue.
When a beautiful and mysterious woman bursts into the office of Leo Falloon, desperate to find her missing brother, it's just another day in the life of a hard-boiled detective. The problem is, Leo's not a detective. He sells novelty advertising across the hall from the detective, but how hard can it be?