When a mysterious visitor shows up at a vacation rental, a peaceful summer turns into a waking nightmare. The suspense thriller The Frog follows two men at the mercy of a ruthless killer — or killers — and an ace detective’s pursuit of justice. Starring Kim Yun-seok, Yoon Kye-sang, and Go Min-si, the South Korean series was created by Baeksang Arts Award–winning director Mo Wan-il (The World of the Married) and writer Son Ho-young. 

The series portrays people whose fates change in an instant, despite the fact that the characters are near strangers to the murder victims.

“Many things happen and many emotions come and go, but we strongly feel and remember a certain incident at a certain time,” Mo told Netflix. “The Frog is about that moment, that emotion.” 

When will The Frog be released?

Stream it now.

Where can I find the trailer for The Frog?

Check it out at the top of this page. 

Go Min-si in The Frog

Who’s in the cast of The Frog?

• Kim Yun-seok (Escape from Mogadishu) as Jeon Yeong-ha, who runs a vacation rental 
• Yoon Kye-sang (Chocolate) as Koo Sang-jun, who owns Lakeview Motel
• Go Min-si (Sweet Home) as Yoo Seong-a, a mysterious woman who shows up at Yeong-ha’s vacation rental
• Jo Yeo-joon (Love Next Door) as Ha Si-hyeon, Seong-a’s young son
• Lee Jung-eun (Parasite) as Yoon Bo-min, the new police chief at Hosumaeul
• Ryu Hyun-kyung (Trolley) as Seo Eun-gyeong, Sang-jun’s wife
• Choi Jung-hoo (Red Sleeve) as young Koo Gi-ho, Sang-jun and Eun-gyeong’s son
• Hong Ki-joon (Hyena) as Ji Hyang-cheol, a mysterious man who shows up at Lakeview Motel
• Park Chan-yeol, aka Chanyeol (Memories of the Alhambra), as teenage Koo Gi-ho
• Ha Yoon-kyung (Hospital Playlist) as Yoon Bo-min, a rookie police officer at Dongho Police Station
• Lee Nam-hee (Pandora: Beneath the Paradise) as Park Yong-chae, Yeong-ha’s friend and associate
• Ahn Sang-woo (True Beauty) as Choi Jung-ho, a sergeant at Hosumaeul Police Station

“I hoped that Yeong-ha would be seen as someone who makes mistakes, who makes the wrong choices, who sometimes regrets and agonizes,” Kim told Netflix about the character he portrays. “Someone who we can easily find around us.”

Writer Son added, “Yeong-ha is excessively ordinary as a main character. Because he is ordinary, he makes unexpected choices and becomes more complex.” 

Kim Yun-seok and Ha Yoon-kyung in The Frog

What happens in The Frog?

Jeon Yeong-ha (Kim) runs a vacation rental home deep in the woods. One summer day, he receives an unexpected guest, Yoo Seong-a (Go), who stays the night with her son, Ha Si-hyeon (Jo). After the guest leaves without a word, Yeong-ha finds traces of blood in the room. Instead of reporting it, he cleans everything up and acts like nothing has happened. Is Seong-a a murderer? And if she ever comes back, will Yeong-ha finally turn her in? 

In another quiet town, Koo Sang-jun (Yoon) runs Lakeview Motel with his wife, Seo Eun-gyeong (Ryu). The pair struggle to keep the business afloat and rarely receive enough guests to get by. After a strange and intimidating man arrives to stay the night, Sang-jun and Eun-gyeong’s lives are torn apart. 

Can an insightful and dogged detective, Yoon Bo-min (Lee Jung-eun), solve the crimes and help bring peace back to these two small towns? 

“I wanted to tell the story of ordinary people who are met with worst-case scenarios and try to protect their everyday lives,” Son told Netflix. “I thought the characters were like trees falling by themselves in the woods. The opening of each episode is the moment they fall that we failed to notice.”

Yoon Kye-sang in The Frog

Is The Frog based on a book?

No, it is not based on a book.

Where does The Frog take place?

It takes place in the fictional towns of Hosumaeul and Dongho, South Korea. 

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