Love and death on quarantine

It has already become clear that a new era began. And life was divided into before and after. She shared her friends Lyuba and Lyudmila Apelsinchik with a different attitude to Covid.
While self -isolation, restless by nature Lyudmila, secretly goes for a walk to the park. And almost becomes a victim of a maniac. She is saved by a dog, which the owner decided to walk in the park at this later time. Friends decide to help her find the attacker, especially since the next victim, unlike Lyudmila, was not lucky. Her tormented corpse is found in the morning in the same park. Further more ... All in bewilderment, what a strange maniac and where does a big black dog?
It looks like she, the key that reveals the secret of serial murders