What a ludicrous contrived ending... SPOILERS.
What the hell were the old couple thinking? How does taking Kai, and even wanting to kill Kai help their situation? The hubby plots with Dawn that all they have to do after killing Kai was to say, "He came to see us, we don't know where he went." How the phuck does that help your situation? You already in deep sh*t. You even acknowledge all the trails lead to you, yet you want to add murder? And somehow you think all will be well by saying... Kai came to see us, we don't know where he went?
Not to mention every character on the show had a part in unraveling the plot, except for the cops. LOL!