Su Jin, an undercover forensic doctor in the 21st century, traveled through time and became the daughter of the Su family in Suzhou who was poisoned by her stepmother. She relied on her professional skills to save the knight Lin Mo and sneaked into Suzhou City. She accidentally met Xiao Jue, the minister of Dali Temple, and has been involved in a series of strange cases since then.
The two first solved the painted skin case: fake human skin makeup and the secrets of Hanmei Pavilion were intertwined, which actually implicated the Xiao Jue family's injustice twenty years ago. Before they could take a breath, nursery rhyme murder cases followed one after another - corpse rouge, beeswax white rope, and white lotus symbols hid murderous intentions, and the deceased was closely related to the descendants of the Xiao family's old slaves.
Su Jin used modern autopsy techniques to uncover key clues, and Xiao Jue used criminal investigation wisdom to pursue old grudges. The two worked together to uncover the conspiracy within the case. But when the Painted Skin case came to an end and the clues to the Nursery Rhymes case pointed to the descendants of the Xiao family's unjust case, a greater crisis was quietly brewing in the dark.
