A wee Scottish island. A big TV talent show. And the Great British Heatwave of 1976.

It’s 1976, the heatwave is blazing, and the tiny Scottish Isle of Cumbrae is simmering with excitement.

Shy teenager Harmony McVeigh never imagined she'd make it this far. Against all odds, she's clinched a spot in the semi-final of the national TV talent show, Young Faces. Her unlikely success is thanks to the guidance of her dashing and enigmatic music teacher, whose passion for Chopin has unlocked her hidden talents.

With the Grand Final just one week later, Harmony escapes on a school trip to the sultry shores of Majorca—the original love island. But beneath the sun-drenched paradise, she stumbles upon a tangled web of musical intrigue and discovers a magical gift she never knew she had.

As Harmony grapples with her newfound abilities, questions arise: Who orchestrated her rise to fame? Was she always meant to compete against the rebellious, proto-punk sensation, Annie London? Amidst the glamour and romance, Harmony must unravel the secrets that surround her and find her true voice.

Join Harmony on a journey of self-discovery, romance, and mystery in Perfect Harmony, where the small-town charm of Cumbrae meets the dazzling allure of a 1970s summer adventure.