RRRrrr!!!

The film takes place 35,000 years ago, in the prehistoric era. Two neighboring tribes live peacefully, but there is a significant difference between them. The tribe of Clean Hair thrives and does not give anyone the shampoo formula, while the tribe of Dirty Hair groans and itches. One night, a terrible thing happens in the Pure Hair tribe: for the first time in human history, a murder has been committed. Never before had a man killed a man, and in this case it was also a woman. Why kill someone who's going to die sooner or later anyway? Who can solve this mystery? What if this murder is just the first, and it will be followed by a series of others?..