The series follows the lives of a group of doctors and nurses working in a London hospital, a world in which everything and everyone has their place.
But underneath the shiny veneer simmers a cauldron of lies, deception and guilty secrets, driven by love, ambition and sex.
The series opens in 1961, a time when Britain was on the brink of the Sixties revolution – abortion is illegal and the contraceptive pill is only just becoming available to married women.
Set in and around a busy Gynaecology unit, medicine becomes the perfect stage to play out the shifting and complex moral codes of early 1960s society.
Breathless also stars Oliver Chris, Catherine Steadman, Natasha Little and Zoe Boyle.
Starts Thursday 10 October at 9pm on ITV