"Your husband is sleeping with your student" – Olga finds such a note in one of the bouquets that were presented to her in honor of her triumphant speech at the scientific forum. Olga is a mathematician. She can easily figure out who sent this anonymous letter. Except this man is found dead. This is how a dangerous game begins, each move of which is associated with one of the Fibonacci numbers. What do they mean and how are they related to Olga's life? The answer is far in the past. Every mistake will cost the life of someone close to the heroine.

During the celebration of the dean's anniversary, mathematician Olga Barkovskaya finds the culprit of the celebration murdered. Next to the body is a card from an unknown game, very similar to the one that was thrown to Olga the day before. It seems that Barkovskaya is being invited again to solve a mathematical puzzle, and a human life is at stake.

A journalist investigates a series of murders that follows the discovery of an unpublished novel by Charles Dickens in the cellar of an old Thames pub.

13-year-old Brian has problems reading, which his teachers attribute to laziness. It is later discovered that he has Dyslexia.

The horrifying 150-year-old mystery of Edgar Allan Poe's perverse masterpiece--solved at last! Legendary detective C. Auguste Dupin matches wits with mastermind Prisoner X. After several brutal crimes have been committed, Dupin must reveal whether the perpetrator is an insane victim of the supernatural--or a psychotic genius. Elegant visuals and haunting melodies intertwine to breathe new life into an eerie tale of rotting flesh.

Traveling through his kingdom’s forest one day King Arthur is confronted by The Red Knight who plans to slay him but decides to challenge him with the riddle “What does a woman want from a man?” Instructing him that there is only one correct answer he sets him free with the proviso that he must return in a month with the solution or be put to death. Riding beside the King, Sir Gawain and he become acquainted with Maid Marian who exiled herself to the forest. A frustrating month ensues as Arthur seeks the answer finally, striking a bargain with a hag to save himself. But will the price be too high?

Riddle is a young man who lost his companions to a mysterious group known as the "Box of Malice." On the brink of despair after 1,000 years, Riddle finally learns to reverse time. With a thousand years of knowledge and experience, the Great Sage Riddle journeys to the past.

In a totalitarian future, in a nightmare metropolis, inhabited only by criminals and police, Erik Lonnrot, a gifted detective, investigates a series of strange murders and disappearances that seem to implicate a insane crime lord. (Re-released in 1996 as a feature film, 86 minutes.)

The story of Conan the Cimmerian, from Robert E. Howard's pulp fiction anti-hero to pop culture icon.

The Riddler matches wits with Batman, but the encounters never go well.