Wonderful World plot
Eun Soo-hyeon is a successful psychology professor and renowned writer. She has a perfect life, but when she unjustly loses her son, she takes matters into her own hands by confronting the perpetrator. Soo-hyeon no longer has any meaning in life, but is comforted by a fellow inmate she meets in prison and slowly begins to open her heart. After her release, Soo-hyeon searches for the victim of the accident caused by her fellow prisoner and meets Seon-yul, who is in the same pain as her. As the two people harboring secrets face each other, they embark on an intense journey to find the truth, exchanging comfort along the way.