‘Married to Medicine’ Sneak Peek: Mariah and Toya Thrown Down at Birthday Bash (Exclusive Video)

Yet another party turns into a drama-filled disaster on Married to Medicine.

The Hollywood Reporter has an exclusive clip from Sunday's episode, which revolves around Mariah Huq's husband's birthday party.

VIDEO: 'Married to Medicine' Star Promises 'Really Heavy' and 'Inspiring' Moments

Tensions begin to flair even before the party kicks off. While Kari Wells is setting up for the festivities, Mariah is nowhere to be found -- and finally shows up two hours late.

Later, Mariah and Toya Bush-Harris get into a physical altercation after Toya reveals a secret from Mariah's past; she also irks Mariah by talking about her mother. The fight then turns physical, leaving guests in shock, drinks thrown and a purse in the pool.

STORY: Bravo's 'Married to Medicine' Scores Biggest Premiere Since 'Bethenny'

Married to Medicine has become a hit for Bravo, with the most recent episode drawing 1.8 million total viewers and 1.2 million adults 18-49, up 31 percent and 60 percent, respectively, from the previous episode. That also marked the highest-rated episode of the season so far in the demo, and together with The Real Housewives of Atlanta reunion episode, boosted Bravo to become the No. 1 cable network in primetime for the night.

Married to Medicine airs at 9 p.m. Sundays on Bravo.

Kimberly Nordyke