"Groggy" is a series about a talented athlete who dreams of becoming the boxing champion. Slava's main rival is his longtime friend Grisha, and eventually the two face off in a match. Kuznetsov emerges victorious, but unintentionally inflicts a fatal injury on his friend during the fight. Slava realizes that the struggle outside the ring can be much harder, as he can no longer live the same way after taking someone's life.