A classic detective story based on one of the best-loved Golden Age crime writers, Cyril Hare, novel "An English Murder" originally published in 1951. The setting of An English Murder seems, at first, to be a very conventional one. A group of family and friends come together for Christmas at a country house, Warbeck Hall. The house is owned by Lord Warbeck, a dying and impoverished peer who wants to be among loved ones for what he thinks will be his last Christmas. The holiday decorations are up and snow is falling fast outside. The guests range from the Lord's difficult son to a visiting Czech historian. There is, of course, a faithful butler and his ambitious daughter. But when the murders begin, there is nothing at all conventional about them - or the manner of their detection...

For several years as a terrible sea monster drowns ships of the Navy. In a small number of ships that managed to survive, in the sides were found huge holes triangular shape. Now any exit to the sea is deadly, so America sends a special frigate called Blue Star. His goal is to find and destroy the terrible monster. One of the participants of the punitive expedition is a famous Professor from France – Pierre Aronnax. He has a deep knowledge of the mysteries of the deep sea. The search for the monster continues for more than three months, but in the end, the frigate still detects it and immediately starts the attack mode. After an unsuccessful battle with the monster ship goes to the bottom, and the Professor, his servant Conseil and whaler Ned Land get on a submarine and make an amazing journey under water.