
The central plot of HBO’s “Big Little Lies” revolves around someone’s murder, but the show plays coy with the details, including the identities of both the murder and the victim. The series is a fairly straightforward adaptation of Liane Moriarty’s 2014 novel — at least so far — but here’s a rundown of possible scenarios.

Madeline (Reese Witherspoon)
Why she might be dead: It would be pretty surprising if any of the three main women turned out to be the victim, but Madeline clearly isn’t afraid to make enemies.
Who probably killed her: The violent incident with Renata’s daughter seems to be setting up a rivalry between the moms, but Renata (Laura Dern) doesn’t seem like the type to get her hands dirty.