Des

Based on Tennant’s performance alone, Des is a compelling watch. But Mays and Watkins put in solid performances, as well.

Tennant gives an unforgettable performance as Nilsen, a portrayal that dances dangerously along the edge of comedy. ... “Des,” created by Luke Neal and Lewis Arnold and directed by Mr. Arnold, is delivered in three tautly constructed, economical episodes about crime and punishment, the crime, as usual, being more engrossing than the punishment.

Rare it is to watch a drama about a serial killer that leaves you feeling as though the victims have been done a service. In the end, perhaps the greatest accolade that can be given this sensitive, finely worked piece is that Nilsen himself, attention-seeking narcissist though he was, would surely have hated it.

Des is made to last. It has a confident script directed with a good sense of time and place.

In its determination not to be sensationalistic errs on the side of vagueness. (If the point is that Nilsen was just an empty shell, it’s not made in a way that I found very compelling or particularly chilling.) ... Enjoying “Des” — well, appreciating “Des” — has to do with its details, which include the seamless, highly capable ensemble work among Mays, Watkins, Tennant and Barry Ward (as Jay’s right-hand man) and the appropriately musty evocation of the period by the production designer Anna Higginson and the cinematographer Mark Wolf.