Just my type

Director David Mackenzie's ingenious thriller engineers a high-stakes game of cats and mice on the streets of New York using a real-life messaging relay service that facilitates lively discourse on the phone between deaf and hearing communities.

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What this means is a deaf person uses a special keyboard to type out their half of a conversation and a relay assistant with a similar terminal reads it aloud to the hearing person. The call recipient replies verbally and the relay assistant types the response word for word so the deaf person can read it. Back and forth it goes.