热层之密室

A chamber murder happened in the distant thermosphere: an American astronaut was killed in the locked cabin in the space station. The space station commander Igor was ordered to escort the body to the earth by spaceship. However, the spaceship exploded on the way and all the evidence completely lost; people related to the event never said a single word about it. Eight years later, another American astronaut died strangely in the same cabin again and the door was also locked; the case became a mystery. Igor's son Victor realized that there was a hidden secret behind the spaceship explosion and the key to solve it was hidden in the last email sent by his father to him.