Three princesses died in Prince Jing's Mansion one after another.
The first one fell into a well, the second one took poison, and the third one was buried in a sea of fire. None of them survived the seventh day of marriage.
After their eldest sister escaped from marriage, the Shen family stuffed their concubine Shen Zhiwei into a sedan chair and forced her to celebrate her sister's wedding. Everyone was waiting for her to become the fourth corpse. Only she found a bloody note in her wedding dress:
On the seventh day, don't open the door.
On the wedding night, there is a coffin in the bridal chamber; a deadly incense is hidden in the incense burner; the account books, prescriptions and maps left by the first three princesses all point to an old case that has been sealed for many years.
And her husband, who was rumored to be dying, also opened his eyes in the middle of nowhere.
Xiao Chengyan's poison was real, but his illness was fake.
He used his bride to find out the murderer, and she used the palace to find out about her mother's death. The two were suspicious of each other and had to work together to survive.
It was not until the seventh day and night that Shen Zhiwei survived from the dead end, but Xiao Chengyan vomited black blood in front of her.
Under the medicine bowl, there is a blood-stained copper coin: damn the seventh day, never the bride.