(pay-off) has to do with set
up, cf. using the hearing aid in the film "The Tough
Ones" ("Häjyt"). The youth who died in
the crash is identified as the brother due to the hearing
aid. Earlier the hearing aid is set up into the
plot as something worth bragging ("We bought the
best one money can buy"), as if incidentally.
Bardy: Häjyt. kuvauskäsikirjoitus.