Mager, a lifelong fan of 70s thrillers, says he wanted to put his own "twist" on films like Get Carter and The Outfit (which feature "intimidating men in cool clothes" on a mission of vengeance) by drawing on the deaf experience as well.
"Reunion starts out like those classic thrillers, but ends up in a very different place," the writer says.
As main character Brennan hunts down a man known only as Monroe, viewers become aware of a painful secret he's been hiding and the struggles he is facing to find justice in a hearing-centred world.
The Guardian called the performances in the show "outstanding" and the switch between signed and spoken language "utterly seamless", while the Independent says Reunion is "in many ways, a groundbreaking show".
Ultimately, Mager says he wanted to touch on issues unique to the deaf community in the programme, as well as providing opportunities for deaf creatives.