Season 1
During an exceptionally routine day in the life of an average taxi driver, luck takes an unexpected turn as a seemingly friendly passenger offers a substantial sum to be driven to Mookpo. However, despite his amiable appearance, Oh Taek soon comes to the unsettling realization that this passenger is, in fact, a serial killer.
Taxi Driver
Oh Taek's last customer Geum Hyuk-soo asks if Taek could drive him to Mukpo and he accepts the offer. When Hyuk-soo says he killed a man before, Oh Taek senses something is wrong.
It's Hard to Find Good People
Oh Taek hits the road again without realizing Geum Hyuk-soo's murder at the rest stop. Hwang Soong-yu suspects that Geum Hyuk-soo is behind her son's suicide. She decides to chase Geum Hyuk-soo herself.
Everything Comes with a Price
While Oh Taek continues to listen to Geum Hyuk-soo's confession of his murders, he runs into a highway patrol. However, due to the fear of Geum Hyuk-soo's threat, Oh Taek blows up his chance.
The Sheep and the Wolf
Kim Joong-min finds Geum Hyuk-soo's fingerprints in the camper van. Hwang Soong-yu finds the taxi, but Hyuk-soo and Taek are already gone. Oh Taek barely escapes from Hyuk-soo and calls the police.
The Smiling Man
Taek contemplates after Hyuk-soo's call that if he does not return to the remote house, Seung-mi will be killed. Hyuk-soo tells Taek that Seung-mi will only be spared if he manages to smuggle out.
What Happens Happens
Taek calls Kim Joong-min in secret and informs where Hyuk-soo is going. However, Hyuk-soo soon finds out, and Seung-mi is in danger.
Misfortune Doesn't Ask Why
Lucky Day
An Eye for an Eye, a Tooth for a Tooth
Even if Life Deceives You