HBO really loves its Sunday evening programming block about pretty people with romantic problems. The new half-hour dramedy Togetherness has been renewed for a second season, the network announced Tuesday.

Created by brothers Jay and Mark Duplass, the series follows two couples living under one roof in Los Angeles, and paints an honest, quiet, and often heartbreaking picture of adulthood, marriage, and friendship by weaving together emotional stories with instances of unconventional humor.

"We began our love affair with HBO in our parents' living room in 1983, and to have these brilliant creative people put a ring on our fingers with a second season of Togetherness is a real-life dream come true," the Duplass brothers said in a statement.

SAG Awards: The best and worst dressed

In addition to his credits as co-creator, writer, director, and executive producer, Mark also stars as Brett, an undersexed and underappreciated husband whose marriage to Melanie Lynskey's equally frustrated Michelle has been strained by their two children.

Meanwhile, Amanda Peet stars as Michelle's older sister, Tina, who's recently relocated to LA after leaving Houston for a man who didn't want to be with her. Co-creator and consulting producer Steve Zissis rounds out the quartet as Alex, Brett's best friend and a struggling actor who forges a surprising bond with Tina after they both move into Brett and Michelle's small Los Angeles home.

The Duplass brothers will be busy this coming year. They also recently signed a four-film deal with Netflix.

Togetherness airs Sundays at 9:30/8:30c on HBO.

The Americans: Will Elizabeth and Philip's marriage survive?