250 oil workers disappear without a trace from the floating oil platform "Aeschylus". Production has been stopped and there is no communication. The oil company Valley Oil finds itself on the brink of disaster and prepares to send a search and rescue expedition to the South Atlantic. Kate McCready, daughter of the US Vice President, attends a secret meeting shortly after taking over her inheritance rights to Valley Oil shares. Not only did her father leave her his entire fortune, but, among other things, she received an envelope with satellite images of the Aeschylus platform. She comes to the conclusion that these images are strongly linked to the developing crisis and decides to join the expedition. Once on the platform, the rescue team does not find any signs of life on it, but the entire platform is surrounded by some kind of tentacle-like fungus. Kate dives deeper into the mystery of the platform, explores an abandoned military base located on a nearby island and unravels eighty-year-old mysteries. Soon she is faced with a choice: become an accomplice in concealing the activities of the corporation or make all the secrets public and, thereby, destroy her family.