The phrase "gripping mystery" refers to a story or situation that is extremely captivating, suspenseful, and puzzling, keeping the audience or reader fully engaged and eager to uncover the answers. Full definition
A sharp, gripping mystery filled with chilling revelations, it's no wonder this book was such a hit. (bookpage.com)
Hundreds of gripping mystery stories have been published over the years, some that you might have missed or overlooked. (blog.feedspot.com)
«Happy End» is a much more meandering, less contained film though, and it doesn't have a central, gripping mystery like «Hidden» and «The White Ribbon». (timeout.com)