Guess how it ends: The Lie

The trailer for The Lie has finally landed, and it does seem like a compelling thriller. Of course I can't wait to see it but I also can't help but feel like the trailer gave away some important plot points. 

Kayla's friend does seem like a victim of abuse. When Kayla says that her friend's father was abusing his daughter, was that the lie or the truth? 

My guess is that the  daughter  wanted to escape the abuse she was subjected to and concocted the whole plan with her friend to escape and frame her father. So does she really stage her death? But why would Kayla take it upon herself that she pushed her friend off the bridge?

When she talks to her family about lies, is there something that Jay is hiding? There has to be a reason why Kayla puts herself in the middle of everything. She must want to expose her family's secret as well or simply test her family's love for her.

The truth will be revealed when the movie releases.