Whose Hellos Are These, Anyway?

Step into the unusual shoes of Penn Zedd, a down-and-out private detective with a knack for getting into awkward situations. One fateful afternoon, Penn receives an anonymous package containing dozens of handwritten greeting cards, each signed with a different name, all claiming to be from someone named 'Hello'. As Penn embarks on a journey to uncover the mystery behind these bizarre messages, he navigates a zany world filled with eccentric characters, each with their own motives and secrets. Can he crack the case while keeping his sense of humor intact, or will he get lost in a sea of hellos?