Every day at 6 pm a serial killer kills a different person. Police officer Helena Rus decides to find the killer by researching about 18th century history of the city.Every day at 6 pm a serial killer kills a different person. Police officer Helena Rus decides to find the killer by researching about 18th century history of the city.Every day at 6 pm a serial killer kills a different person. Police officer Helena Rus decides to find the killer by researching about 18th century history of the city.