Brother Cat and Brother Dog were two inseparable friends. One evening, they hear about a great party. But the party is for horned animals only! Disappointed, the two friends try everything to get in and end up finding a goat's horn: they will take turns going to the party by attaching the horn to their heads. Brother Dog is the first to go and have fun, it shines, it sparkles. Outside, Brother Cat has been waiting for a long time. He calls Brother Dog again and again, but Brother Dog is too busy dancing... For Brother Cat, it's time for revenge! A funny story about friendship and its ups and downs: complicity, betrayal, arguments... and reconciliation!