If Big Little Lies had been made by someone with a brilliant sense of humor, and the moors of Monterey had been swapped with those of the Irish coast, it might begin to resemble this series that is part comedy, part thriller. In the first season, a man died, the despicable husband of a woman with four sisters, and all the sisters were subjects of an investigation into his demise. Now, two years later, pressure builds and secrets spill. Killing Eve’s Owen McDonnell and Sex Education’s Thaddea Graham, among others, have joined Sharon Horgan, Anne-Marie Duff, Eva Birthistle, Sarah Greene, and Eve Hewson in Bad Sisters, which is based on the Belgian series Clan. Co-written by Horgan, Dave Finkel, and Brett Baer, it’s Horgan at her best, pairing the deadpan humor of Pulling and Catastrophe with something closer to horror. —Julia Vitale