Bekaaboo is an Indian thriller web series by ALT Balaji. It is the official adaptation of the book 'BLack Suits You' by Novoneel Chakraborty. The show follows the story of a happy couple whose lives are interrupted by a crazy stalker. Author Liyaan Roy writes a book about his sexual fantasies with a crazy fan which comes true. The show is an underwhelming adaptation of the book, reduced to sex just to sell it and have a wide reach. Read the book instead.