Set in 1973, a team of scientists decipher a mysterious signal from space and discover that it provides instructions to build a powerful super-computer. Once built, this computer provokes argument between two of leading team members, Fleming and Dawnay, over the machine's real intentions as it provides further instructions to create a living organism, which Dawnay starts to develop. Later it appears to compel lab assistant Christine to commit suicide, and when the organism is fully developed, it...