Trivia: Final movie featuring JT Walsh to be released during his lifetime.
Trivia: Red's son Deke is playing the Playstation 1 port of "Doom" (1995) in the scene where Jeff enters the house.
Trivia: When Jeff tries to get Red to pull over on the road, he almost misses an RV and has to swerve at the last minute. In front of where he swerves is a big rock looking thing, right frame. It is there to hide the camera filming the lower angle shot we see in this sequence.
Answer: She was not in on it. However, once she turned against Jeff by encouraging her son, Deke, to shoot him, Jeff suddenly felt her to be as much as a threat as the others involved. This would explain why he had her and Deke into the cellar to be locked up with the others. Also, don't forget she was startled to see the freezer and Amy popping out of it.