[5] The film revolves around a former intelligence agent Gi-heon (Gong Yoo), who gets involved with the first human clone, Seo Bok (Park Bo-gum).

[15] In April 2019, Jang Young-nam, Jo Woo-jin and Park Byung-eun were cast in supporting roles.

[28] It remained at the number 1 place at the Korean box office, on the second day of its release, as 36,183 audiences viewed the film.

[32] Going by Korean review aggregator Naver Movie Database, the film holds an approval rating of 8.42 from the audience.

Concluding the review Seong-Hyun said, "It is difficult to erase the thought that the actors' performance is somewhat regrettable to contain a long and repetitive message.

"[34] James Marsh writing for South China Morning Post rated the film with two out of five stars and called it a "... quasi-philosophical melodrama masquerading as a futuristic action thriller".

He opined that director Lee Yong-ju in spite of putting all hi-tech thrills and setting a stage for good brainy cinema, could not make it happen.

Concluding the review Marsh wrote, "Inevitably it is the all-too-familiar themes of mortality, family and corporate malfeasance that permeate to the surface as Lee defiantly steers his film headlong into a quagmire of ponderous, poorly articulated existential nonsense.

Tan concluded the review, "the over-the-top psychic CGI displays really got in the way of the bigger questions of how the first ever human clone should find his place in the world, without everyone trying to siphon his DNA for everlasting life.

Concluding her writing up Tan penned, "Watching Seobok, a superbeing with powers of telekinesis, go all Dark Phoenix on his enemies is right up there with any X-Men movie.