Before you is a fascinating collection of the most mysterious incidents of the past and present, the true solution of which is hidden to this day. The authors build a series of logical, and sometimes fantastic versions, trying to shed light on what is hidden in the darkness. Murders of famous people: Abraham Lincoln, John F. Kennedy, John Lennon; the deaths of Princess Diana and Marilyn Monroe; mysterious phenomena such as "men in black," UFOs, 51st square in Nevada, have become the object of inquisitive researchers, and perhaps this book will satisfy the curiosity of the most meticulous readers.