Investigator Andrey Morozov is searching for Vitya, the missing son of his wife, who is in a coma. All the evidence leads Morozov to the mysterious One Call bar, which disappears and reappears in different places, leaving behind the bodies of the dead. The establishment is run by a bartender who not only mixes cocktails and makes cynical remarks, but also helps visitors to call the deceased. Different people come into the mysterious institution with their own problems: pretty Jeanne, who wants to get rid of her wealthy husband; lawyer Max, who has not been able to separate from his mother with age; blogger Sam, who has yet to figure out what his dealings with the other world are.