BACKGROUND: Peter has been in St. Petersburg for the weekend, visiting girlfriend Nadia and her daughter Anna. It's a special weekend, as Nadia and Anna are to emigrate to Canada the following Wednesday. The two days they have spent together have even exceeded Peter's already high expectations, culminating in the three of them enjoying a farewell dinner at their favourite restaurant together with Nadia's best friend Marina. After the meal, they go straight to the station from where Peter's train to Moscow is due to depart a little before midnight. From this point, the chronology of events is as follows:
