The core relationship is between MGB agent Leo Demidov and his wife, Raisa. Their marriage begins as one of convenience and fear; Raisa admits she only married him because she was terrified of what he could do to her as an agent.
The phrase does not appear to be a recognized title for a single book or movie. Instead, this specific phrasing often occurs in digitized archival records or academic bibliographies where "442" is a page number or reference code.
However, based on similar titles and themes of romance and relationships, it is likely you are referring to one of the following: 1. Child 44 (Novel by Tom Rob Smith / 2015 Film)
As they go on the run and investigate a serial killer, their relationship shifts from mutual suspicion to genuine partnership and love.