Detective Kang gets involved with a drug business to pay the medical bill of his comatose wife. Min-woo confesses to Kang that he has killed his wife, who knows his past. Slowly, Kang realizes his wife's incident and Min-woo are connected.
You can now watch Beautiful Sunday online on the following streaming providers in the United States.
| Directing | Jin Kwang-kyo | Director |
| Writing | Jin Kwang-kyo | Writer |
| Crew | Won Jin | Stunt Coordinator |
| Crew | Won Jin | Martial Arts Choreographer |
| Directing | Won Jin | Action Director |
| Crew | Jung Youn-hyeon | Stunts |