Auntie Dearest

S2, E9: Mark and Liz let Liz's sister, Rebecca, move into their home when she fell on hard times. But fast forward 2 years and Liz is still there, has not paid a dime in rent, has over-run their house with her eclectic furniture, terrorizes their teenage daughter, and takes over the household by shouting orders at everyone. Expert Mel Robbins is called in to tame this evil drill sergeant before she destroys Mark and Liz's home, family and marriage.