Paul Starr, Ireland's leading cardiologist dies in a car crash with a pregnant young woman by his side.
United in their grief and the love of one man, four women are thrown together in an attempt to come to terms with life after Paul.
They soon realise they never really knew him at all.
The love they shared for Paul in his life and which incensed a feeling of mistrust and dislike for each other, in his death turns into the very thing that bonds them and their children to each other, forever.
As they begin to form unlikely friendships, Paul's death proves to be the catalyst that enables them to become the people they always wanted to be.