5 astronauts went on a spaceship to travel in to the deep space. 3 of them were Hibernation.Two remained to monitor the ship ... There was and artificial intelligence named HAL, it was corrupted.
People thought he was blown off course and they fly the wrong way. And since only the HAL was known the real purpose of the mission, he had to lock up people so they wont turn him off.
One of the astronauts was trapped and he was killed by the HAL. He was closed in a small room. Hal pulled out all air from the cabin and he died. Only one astronaut was left ... and 3 remained in Hibernation cam . that the remaining astronaut was able to somehow get on board and was able to turn off the programm. Before his death he began to sing.