Half & Half (2002)

S1E1 The Big Pilot Episode

Mona, an independent record label executive, is excited to finally occupy the luxurious penthouse her father has long promised her. However, her dreams of a fresh start are shattered when she discovers that her entitled half-sister, Dee Dee, and Dee Dee's domineering mother also consider the apartment theirs. Tensions escalate between the sisters when Dee Dee unwittingly catches the eye of a man Mona has been secretly interested in, complicating their already fragile relationship even further.