Cormoran Strike is a war veteran turned private detective operating out of a tiny office in London's Denmark Street. Though he's wounded both physically and psychologically, Strike's unique insight and his background as an SIB Investigator prove crucial in solving complex cases that elude the police.

Miss Eliza Scarlet is ready to begin a new chapter. William Wellington, aka The Duke, has decided to stay in New York permanently.

Season three of this dark, gritty crime drama follows two concurrent mysteries: one the case of a man suffering from psychosis, desperate to find answers about a girl he saw strangled years ago. The other, the case of a government minister blackmailed by the same man's brother. However, the mystery of how these two cases connect is not the only source of driving tension. Fans of the series want to know if Cormoran and his assistant Robin end up together,...

In Miss Scarlet and The Duke Season 4, Eliza has taken over the business of Nash & Sons (not that he has any sons) and things are not going entirely smoothly, although help comes from some familiar sources. Outside of work, her relationship with William 'The Duke' Wellington builds towards a looming decision that will shape both their lives.