Michelle (Melissa McCarthy Melissa McCarthy) has lived a life of dependency since she was a child. She has seen the cold and warm world of her, and her character has become conceited and perverse. After growing up, Michelle finally took the position of boss with unremitting efforts, but she was so hard on her staff that she even treated Party A with a lofty face. Soon, Michelle suffered from her cynicism and was sentenced to eight months in prison for insider trading. After coming out of prison, Michelle lost everything, and all her friends and partners shunned her. At this juncture, Claire (Kristen Bell Kristen Bell), an assistant who has been mistreated by Michelle, stepped forward to lend her a helping hand. In this way, homeless Michelle became Claire's roommate.