A woman in Jiangsu, China, got her friends to attack a man who playfully smeared her face with cake during her boyfriend's birthday celebration, reported Kwong Wah Yit Poh.
The man, who was stabbed repeatedly in a fight, later died at a hospital.
A witness, Zhang Fang Ping, 20, said he was invited to the birthday party, which was attended by the woman as well as other friends.
"Although we did not know each other, we had fun during the party. However, when we were playing and joking around, the girlfriend's face was suddenly smeared with cake.
"She got angry and threw a big fuss. She even called her friends for help," he said, adding that the situation quickly deteriorated, forcing him to rush with his friends to a supermarket nearby to buy several knives in preparation for a fight.
When the fight broke out later, Zhang claimed that he was beaten up by several men and received a severe blow to his left eye.
All those involved in the fight were later arrested by the police.