Andrey Viktorovich Izvorin is a very creative person. He draws comics and publishes them under the pseudonym Hunter, and the rest of the time he teaches history at a university and sincerely loves his subject. Izvarin came up with a theory according to which every unsolved crime, including if an innocent person was punished for it, inevitably repeats itself. The ability to draw and think with pictures, as well as knowledge of history, help him and investigator Anna Rybakova to follow the trail of the most unusual maniacs and solve the most complicated murders.
Zhenya Morozov is a documentary filmmaker. He achieved great success in his profession, but the films themselves did not bring him fame. Then he decides to make a documentary that will blow up the Internet. All that remains is to choose a theme. Having looked death in the eye, Zhenya decides to dedicate his new film to the study of the supernatural and the paranormal. He gathers a group consisting of his ex-girlfriend, screenwriter Dasha, and cameraman Egor. It's a pity the documentarian doesn't know what he's gotten everyone into.
Successful, but very lonely journalist Polina does not start serious relationships with men – having experienced infidelity, she is afraid to make the right choice again. One day, Polina's work brings her an interesting acquaintance and an unusual gift – a magic bracelet. With his help, she can "try on life" with the man she likes and fast forward three years to check out how their future together will turn out. Polina embarks on an exciting journey through her alternative destinies, but the search for the perfect groom is delayed.
Detective Stas Khabarov is shot in the back attempting to arrest a well-known drug dealer. When Stas comes to his senses, he is shocked to realise that he has actually died and become a ghost. He sees a vision of his estranged wife Vera being murdered on her birthday by the same person who attacked him. Determined to find his killer, he decides to stay on Earth to solve the mystery and prevent the death of his beloved wife.
The ambulance doctor Alexey Ivanov once suffered a severe trauma - his beloved classmate was strangled right on the prom night, and the memory of this terrible incident continues to haunt him everywhere. Returning briefly on business to his small homeland, to a quiet provincial town, Alexey becomes the main suspect in a crime that he did not commit, and now he is forced to lead the search for the maniac himself – as it turned out, all these years he continued to crack down on girls, and attacks happened only during those periods when Alexey was in the city.