SOURCE.

It's debatable how long a serial with so few recurring characters exploring the romanticized mysteries of what is essentially a dead-end job can maintain its delicate night-bloom charms, but this Showtime import (happily London-based with nary a whiff of the network's usual Canada-for-wherever substitutions) is watchable thus far. And for all the typical premium-cable come-ons about pseudo-hardcore hanky-panky, at this point boringly numerous and inevitable, the actual onscreen couplings are handled with an almost novel absence of exploitation. The mystique of illicit, moodily lit, soft-focus sex, and the obligatorily arch, worldly observations designed to puncture it, tend to come with a built-in expiration date; but for now, in twenty-minute segments, they feel comparatively fresh and inviting.