Just between us

I enjoyed the story. The rise in tension in the first half was great, but the second half was slightly disappointing. Plus I kind of figured Heather's deal really early on, so that was a bit of a bummer. But what I want to know is ... who the hell helps someone cover up a murder when they've been friends with that person for only 2 years? Life-long friends who helped each other through horrible abusive childhoods, maybe. But it doesn't make sense to risk your husband and your children for someone you've known for 2 years! And it's not like they were THAT close, either; they met often to talk, but that's it. A superficial friendship. That's not worth going to prison and losing your family for!