'Big Little Lies' season 2 finale spoilers show a very angry Celeste, but has Mary Louise figured out everything?

Celeste, a certified attorney, announced that she'll be bringing in her own witness as part of her defense - the witness' identity being something that viewers are aching to find out. 

This article contains spoilers for season 2 episode 6 'The Bad Mother.'

'Big Little Lies' season 2 has just one episode to go. And as we get closer to the dreaded Sunday when all the little lies will meet their big consequences, HBO has amped up the tension with the release of the official teaser for the upcoming finale. In last week's episode, we saw the custody battle between Celeste (Nicole Kidman) and her mother-in-law Mary Louise (Meryl Streep) heat up as the older woman tried framing her for being more than just a bad mother - Celeste is too promiscuous to raise her twin sons. But that also prompted Celeste, a certified attorney, to announce that she'll be bringing in her own witness as part of her defense - the witness' identity being something that viewers are aching to find out. 

Sadly, the trailer for the big season 2 finale 'I Want to Know', does not reveal who the mystery witness is. But it does reveal where the Monterey Five stands in their friendship and lies at this point on the show. The trailer opens with the signature waves crashing and we know it can't be anything good. Celeste's voiceover takes over as we see her sitting down in the courtroom, talking about the Monterey Five or 'whatever we call ourselves' is basically made up of their unanimous lie, and the friendship they share. So expect some heavy dosages of moisture clouding your eyes as the season 2 finale goes down.



 

Madeline (Reese Witherspoon) looks on the verge of reconciling with her husband, Ed (Adam Scott.) But her take on the life and lies of the five women that have been so entangled in the wake of one of them accidentally pushing Perry (Alexander Skarsgard) aka Celeste's husband and their friend Jane's (Shailene  Woodley) rapist to his death is nothing but dark. "I can just see the damage that it's done. It's eroding every single one of us," her voiceover says as shots of the Monterey Five - all looking distraught and troubled - pan across the screen.

Mary Louise's voiceover can be heard saying "We're all a part of this; who knows what I haven't seen," and Bonnie (Zoe Kravitz) watching someone get carried in a hospital stretcher leaves one equally unnerved. Did Bonnie commit her second murder? Going by the previous episode it seems highly likely, but more importantly - has Mary Louise figured out that it was Bonnie's push that killed her son? The trailer ends with Mary Louise hugging her two grandsons, Max and Josh, in the courtroom as a teary-eyed, pretty livid and defeated looking Celeste watches silently. 

Safe to say, all hell is about to break loose once 'Big Little Lies' season 2 episode 7, and season finale, 'I Want to Know', airs on Sunday, July 21, at 9 p.m. only on HBO.

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