Six "agents of mystery" who have excellent chemistry must solve paranormal mysteries within six hours, relying on their quick-thinking and teamwork.

Butler Kim (Lee Jun-young), a man who replaces errands that start at 100 won per day, and Baek Dong-ju (Lee Hye-ri), a funeral director who grants the wishes of the dead, running an errand company.

The thrilling love story of Shin Woo Yeo, a 999-years-old gumiho who wants to become human, and Lee Dam, who accidentally swallowed his fox bead.

Ancient Korea, 1506. The tyrannical King Yeonsan-gun of Joseon is overthrown by his half-brother Jung-jong, whose reign begins with a blood bath. Over the years, traitors plot against him, sinking the kingdom into chaos. In 1528, frightened rumors come to royal palace, regarding a mysterious creature, known as Monstrum by the peasants.

Take a nostalgic trip back to the late 1980s through the lives of five families and their five teenage kids living in a small neighborhood in Seoul.

Koo Seo Jin reaches an all-time low when he uses his power as a theme park director to decommission Wonderland's popular circus. Refusing to give into the demands of her frosty boss, ringleader Jang Ha Na puts up a fight, but is thrown off guard when Seo Jin's secret persona reveals itself with genuine kindness. In the battle to save her circus, Ha Na realizes she must tease out Seo Jin's brighter side with magic, wonder and love, but who's listening — Jekyll or Hyde?