What started out as a night at a party in Raureka on Friday ended in Hawke's Bay Hospital for two young Hastings men.
One of the pair received what police said were stab wounds and was said to be in a stable condition.
The second man was treated and discharged overnight.
"It was a pretty big ruckus," Detective Sergeant Heath Jones said.
He said while the stab victim was stable he was still "pretty crook".