He is best known as the creator of the television series Threesome and the book writer and lyricist of the Olivier nominated stage musical Everybody's Talking About Jamie.

The only child of Dianne, an art teacher, and Anthony, an artist, MacRae grew up in Weedon Bec, Northamptonshire[1] and attended Campion School, Bugbrooke.

His writing for television includes Mayo starring Alistair McGowan; "At Bertrams Hotel" for Marple and "Life Born of Fire" for Lewis; The Lines of War for Bonekickers; and an episode of Casualty.

It starred Stephen Wight and Amy Huberman as a young couple and Emun Elliott as their gay best friend.

He wrote the book and lyrics to the stage musical Everybody's Talking About Jamie, which premiered at the Crucible Theatre, Sheffield in February 2017.