Watch the Season Finale Promo for Big Little Lies

The promo for the season finale of Big Little Lies has been released. Entitled, “I Want to Know”, the episode will air next Sunday, July 21.

In the episode, “Celeste questions Mary Louise about a tragic event from Perry’s childhood; Madeline worries their lie is tearing the Monterey Five apart.”

What did everyone think of tonight’s episode?

Source: HBO