Two seemingly unconnected suicide cases point all suspicions to a famous painter. And just when the police locked the murderer, they found that the suspected painter had jumped to his death. The crisis does not end there. The case is in an unprecedented dilemma, and the only clue left is the suspect painter's ex-wife.

Top actor Zheng Zhi (Shin) and Nina (Gillian Chung) are starring together in a movie about a poor man romancing a rich girl. Filming isn't going so smoothly, however, as director Mandy (Li Xiaoran) keeps picking apart Zheng Zhi's acting. It turns out that Mandy and Zheng Zhi are actually former lovers, and the movie's plot is their own story. Meanwhile, Chuan Zi (Yu Shaoqun) joined the production as an extra in hopes of reuniting with Nina, whom he believes is his childhood sweetheart. Nina, however, already has a rich and handsome boyfriend.

In his journey of study, young Song Ci, a forensic medical scientist in the Song Dynasty, becomes entangled in a murder case. Still inexperienced, he faces the peril of making a critical mistake. A mysterious traveler comes to his aid, unraveling vital clues hidden on a red oil paper umbrella that prove instrumental in cracking the case. Inspired by his own shortcomings, Song Ci doggedly pursues the truth, forging a legendary path as he unravels the mystery.