Set in present day Dublin, this is the story of two women's lifelong friendship and a betrayal that threatens to tear their lives apart. Trish is left picking up the pieces following a terrible tragedy. Life has been cruel and now it lands another blow. Luckily, she has her best friend Karen by her side to help her through. Then a chance encounter on the French Riviera leads Trish to think that maybe la vie est belle after all. Karen has it all. Sophisticated and successful, she is head of a Maternity & Fertility Clinic in Dublin's city centre. Now, a new man who ticks all the boxes looks like he might be 'The One'.

Olivia is the perfect daughter with a steady boyfriend and a steadier job. But she wants answers. Haunted by the fact that her life has been a matter of chance, she is on a mission to unearth the truth. But, for each of them, the truth has the potential to blow their lives apart.