The characters of Luca, Lana and Dino in "The Car Man" are clearly modelled after Frank, Cora and Nick in the films, and Nick's murder by Frank and Cora is paralleled by the killing of Dino by Luca and Lana in the ballet. Frank's wrongful conviction in Cain's novel is also referenced by the miscarriage of justice perpetrated against Angelo. However, the resemblance ends there. Bourne introduces into the story the themes of unrequited love, betrayal and revenge present in some of his other ballets such as "Swan Lake". A homoerotic element is also present: the protagonist Luca is bisexual – he has an affair with Angelo, and also kisses one of the mechanics working at Dino's Garage on the lips to annoy him; the fact that Angelo has been raped in prison by the warden, Dexter, is alluded to; and two of the mechanics, Marco and Vito, make out with each other.