Kawai Hitomi, Shindou Tamaki, Takayanagi Takako and Samejima Mayuko are four women who all come from different backgrounds and are all part of different generations. Their only connection is a common friend, Shirashi Risako, who introduces the four to each other at her wedding. After the reception, when the quintet go out for drinks, Risako disappears.
As the police attempt to find out what happened to the bride, the four women get caught up in the chase to discover what happened to Risako. Attempting to unravel the threads, they discover themselves and find out they all have more in common than they thought.