In 'Whose Diary Is It Anyway?', players assume the role of Jamie, a witty and slightly jaded journalist who stumbles upon a mysterious diary in an old bookstore. The diary contains entries from several people across different eras, all intertwining in unknown ways. As Jamie, you must piece together the clues embedded within the diary's pages while interacting with eccentric characters from the past and present, all while dodging secrets that some would prefer remain buried. Your choices will alter the course of history, leading to multiple endings as you unravel a dramatic mystery that reveals the interconnected lives hidden within these pages.