It is Sunday morning. Shay’s roommate Sean and his girlfriend Jody are enjoying a cozy breakfast together, but Shay is headed out to work on her resume. She is a market researcher currently looking for a new position. She is happy to have something to do that will take her out of the apartment: She has feelings for Sean and has no desire to watch him share a romantic morning meal with Jody.

On her way to the subway, Shay mentally tracks a variety of statistics: the time it takes her barista to make her coffee, the approximate height and weight of the people she sees, and various other data points. She has always loved statistics: It is part of why she chose her career path.

In the subway station, she watches a woman standing near her out of the corner of her eye. As the train approaches, they make eye contact. The woman jumps in front of the train and dies. Shaken, Shay gives a statement to the police and returns home.

Cassandra and Jane, both looking sleek and elegant as usual, sit in their large, tastefully decorated apartment overlooking the Hudson River. They search for photographs of