The name of the funeral house on the body bag that comes out of the ice chest is "Charon & Sons". In Greek mythology, Charon was the ferryman who transported the dead into the Underworld across the river Styx.
The episode was inspired by Hitchcock's "The Lady Vanishes" at the point that Aria writes her name on the window because she cannot be heard and when she is locked in the crate. It also draws inspiration from the film because part of the episode takes place on a train.
Spencer is dressed as Marie "Slim" Browning
Toby is dressed as Harry "Steve" Morgan.
Jason dresses up as James Dean in his movie Rebel Without a Cause.