Darkness will fall. Brynsza R.

The detective agency Kate Marshall is gaining more and more popular when her and her partner Tristan are hired to investigate a crime committed more than ten years ago. Twelve years earlier, a decisive young journalist named Joanna Duncan revealed a political scandal who had serious consequences. But the journalist herself disappeared without a trace, not leaving behind and the trace.

When Kate and Tristan study the case materials, they find the names of two young people who also disappeared at that time. Gradually, they investigate the last days of their life and understand that Joanna may have come across something much more sinister than anyone thought at first: the personality of a serial killer who hunts for people at that time is the most vulnerable in society.