Mustard Husband. Fifty years ago, a group of Changsha Tu Fu Zi (grave robbers) dug up a Palindrome of the Warring States (战国帛书), the remnants of which recorded the location of a strange ancient tomb of the Warring States (战国古墓), but the group of Tu Fu Zi stumbled into bizarre events underground, and almost all of them were killed. Fifty years later, the grandson of one of the tufu discovered the secret in his ancestor's notes, and he gathered a group of experienced grave robbers to go on a treasure hunt.