The wife of a corporate heir hires a mysterious woman to join the household as a caregiver for her father-in-law.

A-jin attends mediation class. Mr Chairman sends Bok-ja Park to buy the most expensive bag at the store, as well as clothes and shoes, but not everyone approves.

Ju-mi sees her father-in-law and Bok-ja Park sleeping in the same bed together, after being warned not to upset Bok-ja.

Bok-ja Park torments Ju-mi with the cat that Mr Chairman bought for her, which Ju-mi is allergic to. Ju-mi and A-jin believe Bok-ja will be leaving in a few days.

Bok-ja Park throws Ju-mi's son, Un-gyu, out of the house into the rain in retaliation for Ju-mi throwing her cat out of the house.

Mr Chairman announces to the family that he has decided to marry Bok-ja Park. A-jin reveals that Bok-ja has been convicted of fraud and embezzlement.