Literary fame beckons for Olga Pushkin Railway Engineer when her self-help manual is published at last. In the meantime Olga still has railway tracks to maintain from her tiny Siberian village of Roslazny. Worse still her beloved sergeant Vassily Marushkin has reunited with his wife Rozalina. When Olga is forced to babysit a murder mystery steam train the staged murder becomes very real. Vassily starts a homicide investigation with his boss Captain Zemsky but both are baffled when another murder follows. Zemsky bans Olga from joining the investigation but she makes vital discoveries that point towards something deeper. Further afield a rival author emerges to steal Olga's crown and Olga begins to suspect that Rozalina might be hiding secrets. Can Olga solve the murders save her literary career and settle Rozalina's identity before she loses Vassily forever?
