Beck's new book, Blackbird by Michael Fiegel, is about a male cold-blooded killer who gets together with a young woman who is also a sociopath.
As of season 2, this is the only episode of the series to be written by Caroline Kepnes, the author of the original books.
This episode takes place three months after the previous one when Joe and Beck split up.
Joe and Beck go on a Circle Line Sightseeing Cruise which operates tours of the New York harbour from its base at Pier 83 in Hell's Kitchen.