Lisa McGee Unveils Lead Actor for ‘How to Get to Heaven From Belfast’, Roísín Gallagher ("The Dry," "The Sweethearts"), Sinéad Keenan ("Young man Blue," "Unforgotten") and Caoilfhionn Dunne ("1,000 Blows," "Industry") play Saoirse, Robyn and Dara, three lifelong companions , presently in their late 30s, meet up following insight about the demise of a fourth companion, driving them on a 'dull, perilous and funny odyssey' across Ireland and past as they endeavor to uncover reality behind a companion's passing . past.