By Madison Vain
Updated March 28, 2015 at 10:08 PM EDT

Tension runs high in the first trailer for J.K. Rowling’s HBO miniseries The Casual Vacancy, based on her 2012 novel of the same name: Town council member Barry Fairbrother is dead, his brother doesn’t care, and the rest of the town is sitting on pins over what secrets will be revealed in the investigation.

The series, starring Rory Kinnear, Simon McBurney, and Michael Gambon (Dumbledore!), will air on April 29 and 30.