The adventures of the restless detective Dasha, nicknamed Red, continue! Vacation at the ski resort, alas, did not go well: the end of March, the weather could not be worse. Dasha and her younger sister are clearly bored and have nothing to do, watching the resting public. But one day they witness a crime. They should have quieted down, hidden... But that was not the case! What about women's curiosity? This is what throws the sisters into a whirlpool of incredible adventures... They have to put in a lot of effort before they unravel the mysterious story of the death of fishermen at Copper Mountain and expose a dangerous enemy.