The season of 'Big Little Lies' is almost coming to an end with only one episode left. The fascinating season of HBO's "Big Little Lies" has many questions that are left unanswered still.

HBO has released a minute-long preview for the finale that is to be telecasted on Sunday. A closer look at the preview gives a lot of insight to what is stored for the fans of the series.

From the preview, we can assume that Celeste fights back against Perry and kills him. This might be because of the reason that she finds out that Perry is the one who raped and impregnated Jane. It is quite possible that she has never seen him before the fundraiser. This is because Jane and Perry were never seen in the same room, reported TV Line.

A detailed analysis of the preview gives an insight into the episode. The preview reveals that Ed has shaved his beard. It might be to help him cope with the rift with Madeline. However, he definitely does look a lot better now.

The preview shows that there is a rather tense standoff at the "Elvis & Audrey" fundraiser between Jane, Madeline, Celeste and Renata. After this, Renata's husband threatens Jane with a restraining order. This might be because the two moms didn't make up, after all, reported Yahoo.

Madeline tenderly hugs Jane. It does seem that this takes place right after the murder. If this is true it might be possible that Celeste and Perry are the ones directly involved.

Celeste kisses Perry as her therapist tells her, "Your husband is ill... but so are you." After this the preview shows Celeste crying on the floor and saying, "I kept saying, 'He's gonna change. You've got to stay.'" However, from the scene, it is evident that he hasn't changed as such.

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