‘The Rat’ on Netflix: Korea’s Darkest Webtoon Gets a Gripping K-Drama Adaptation

Published 05/28/2025, 2:48 AM EDT

If you are a Netflix subscriber, boredom is one emotion that is never on the cards. Anytime you need an escape, Netflix is to the rescue. Amid the streaming celebrations of Netflix releases, the streaming giant is bringing an exciting new K-drama adaptation of Korea’s famous webtoon, The Rat. So far, Netflix has really seen the heights of success with its K-drama titles. But with The Rat, things are about to get far more interesting.

For those interested to know about The Rat, here is the streaming scoop you should be aware of.

What is The Rat on Netflix?

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Netflix is adapting a thriller, The Rat, based on the Kakao Entertainment webtoon, Field Mouse, by Ludovico. The upcoming Netflix series draws inspiration from a popular Korean folktale where a rat transforms into a human after consuming clipped fingernails. Kim Hong-sun directs The Rat, famous for his works in Dear Hongrang, Money Heist: Korea - Joint Economic Area, and The Guest

Lee Jae-gon will write the script. Kakao Entertainment will produce The Rat in partnership with CJES Studio and H.House. According to the synopsis, The Rat follows Moon Jae, a reclusive writer whose fingerprint recognition on his phone fails. The friend who helped him manage those things has vanished into thin air. Now with no way left to prove that he indeed is Moon-jae, he discovers a mysterious figure, “Rat,” has taken his name, identity, and fortune.

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In a quest to reclaim his life, Moon-jae sets on the pursuit of Rat. That said, who stars in the new K-drama?

Stars of Netflix’s The Rat

The Rat confirmed the casting of two stars for Netflix. Ryu Jun-yeol and Sul Kyung-gu will portray Moon-jae and No-ja, respectively. Moon-jae is described as a sociophobic novelist living a reclusive life whose world turns upside down when his fingerprint fails to unlock his phone. To worsen the situation, his only friend disappears. Amid the fumbles, he is robbed of his identity and finances, and he soon learns a mysterious entity, “the Rat,” has stolen everything. 

No-ja is described as a moneylender who runs a private detective agency. No-ja once pursued Moon-jae for an unpaid debt. But he is surprised to see him reappear three years later in hopes that he would lend a hand to find “the Rat.” While No-ja’s primary interest is in recovering the money, he soon finds himself embroiled in the hunt. 

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While Netflix just dropped a bombshell K-drama, when can viewers catch up with The Rat?

Release date of The Rat on Netflix

Netflix has yet to confirm a release date for The Rat. However, filming is scheduled to happen between mid-April and November 2025. Since filming will most definitely take up the entire year, The Rat is unlikely to be released this year. What’s on Netflix estimates The Rat to be released in the second half of 2026.

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Further information will be available about the K-drama in the days to come. But it is to be noted that The Rat is a working title. So, fans must stay tuned to remain updated with Netflix’s upcoming webtoon adaptation. Until then, plenty of K-dramas are available on Netflix to satiate the hunger for the unknown. 

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Are you excited about The Rat? Let us know in the comments below!

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Anushka Bhattacharya

2400 articles

I'm Anushka Bhattacharya, an entertainment journalist at Netflix Junkie. Armed with a degree in literature, I once wielded my words to catalyze change within society through my work with NGOs. However, as I stumbled into the exuberant hole of crime thrillers and documentaries on Netflix, it was love at first sight and pushed me into entertainment journalism.

Edited By: Aliza Siddiqui

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