Two friends work as cleaners whose jobs are to clean homes and places where people have died or dead bodies are found. One day, they are tasked with cleaning a house where there were three dead bodies inside. Their job is to clean the corpses that have rotted. When they arrived there, they found that there are strange things happening and then they discover a strange book.

一名莫斯科学生在圣彼得堡参加摇滚乐会时失踪，学生的妈妈雇佣圣彼得堡长大的莫斯科私家侦探伊戈尔（Artyom Tsypin 饰）前去寻找。伊戈尔回到了阔别多年的圣彼得堡，在调查学生失踪案之际，通过复杂的人物调查，他发现自己正走向更大的深渊，盘旋于这座城市的权力黑幕正在向他靠近……