Yeolhansi

In a not-too-distant future, a team of researchers at a deep-sea laboratory has achieved a groundbreaking invention: a functioning time machine. Struggling to make ends meet, the lab's head researcher, Woo-seok, is offered a substantial grant from a powerful corporation if he can successfully pilot the device. Despite his colleague and lover, Young-eun's concerns, Woo-seok and Young-eun embark on a perilous test flight, traveling to 11 A.M. the next day. However, upon arrival, they're met with a shocking sight: the laboratory is on the brink of disaster. But what catastrophic event could have unfolded in the 24-hour span?