Two people ended up in court after a party descended into chaos.
Kelly Blackman, 40, punched a woman on the body and made violent threats towards her at an address on Linksfield, Tayport, on April 12 last year.
Twenty-eight year-old Zak Blackman also brandished a knife at a man after shouting and swearing at him during the same incident.
Dundee Sheriff Court heard the address was Ms Blackman’s sister’s house.
The man who had a knife brandished at him was the partner of Ms Blackman’s sister.
Both accused, of Easterbank, Forfar, pleaded guilty to committing the offences.
Sentence was deferred until April for reports.