Amiable, dependable and straight as they come, DCI Theo Bloom is a much-loved member of the Serious and Serial Unit.
An old colleague of Luther's, Bloom is doggedly devoted to truth and justice. Where Luther can be reckless, Bloom treads the straight and narrow.
Recently, Bloom has taken new recruit Emma Lane under his wing and is helping her chart the tricky waters of the SSU. But with his back against the wall on a horrifying new case and desperate for a breakthrough, Bloom calls on the brilliant mind of Luther.