Alfie McCreadie wants his twin sister Nessa to have the best wedding ever, but he's not happy at being roped in as wedding planner especially as, unbelievably, his main assistant seems to be Nessa's cat, Schubert. Anyway, Alfie is a scientist. He might know his protons from his neutrons, but what does he know about weddings? It's Nessa who points him in the direction of Bea's Garden, just outside Edinburgh, where he's tasked with picking a 'very-relevant-bouquet'. It's there he meets Fae Brimham, who might be prettier than any bouquet bloom but doesn't seem impressed by Alfie's sensible, scientific side. But when Nessa and Schubert are involved, surprises are bound to happen and, despite less-than-perfect first impressions, perhaps something new and beautiful can still blossom for Alfie and Fae