If violence was ambient background noise in “Derry Girls,” it has come front and center, albeit in a more cartoonish fashion, in McGee’s new show, “How to Get to Heaven from Belfast.” The eight-episode comedic murder mystery, which premièred on Netflix last month, and quickly gained a following in the U.K., shares some similarities with McGee’s previous project. Once again, we are mostly in Northern Ireland with a tight-knit gang of girlfriends who wind one another up and hatch plans in rapid-fire dialogue. This time, however, we are in present-day Belfast, and the girls are grownups: thirtysomething women who were closest when they attended Catholic school together, twenty years earlier. Back then, they were inseparable and—maybe, possibly—did something one dark night in the woods that none of them has been able to forget.journey-inline-newsletterinline-newsletter