Joan Rivers has said goodbye to New York and hello to Los Angeles. She's living in Melissa's house...and turning her daughter's world upside down. Whether it's raising her grandson, meddling in Melissa's love life, or sparring with the neighbors - Joan has an opinion about everything. And she is not afraid to speak her mind! How far will Joan go? How much can Melissa take? And the question that everyone is asking - does Joan really know best? One thing is for sure - through all ups and downs, the bond between Joan & Melissa is stronger – and funnier - than ever!