After painter Michael 'Mike' Sheldrake's failed suicide attempt, house-mate and life-long best friend Peter Tremaine, an antiques shop owner, reminisces their common past, like Mike does in therapy. It started at the beach, when scrubby, scared Mikey became the dependent protégé of forceful Pete, both doted by Pete's dad, a wealthy lawyer. Afterwards Mike moves out to marry Kate. Pete accepts to be best man, but overdoes that, 'arranging' to get stuck in the honeymoon hotel he paid for. Drama from their boarding school childhood intertwines with tragedy for the mates, Kate and vindictive former police detective Miller.

Tommy is an unhappy seven year old boy who is still grieving for the death of his father, whilst battling with his new stepfather. When a moth dies in the palm of his hand he is fascinated by the residue it leaves behind - "magic dust, that helps the moths to fly" his mother tells him. Tommy becomes obsessed with moths, seeing them as the only way to escape from the conflict around and within him.

In 1985, against the backdrop of Thatcherism, Brian Jackson enrolls in the University of Bristol, a scholarship boy from seaside Essex with a love of knowledge for its own sake and a childhood spent watching University Challenge, a college quiz show. At Bristol he tries out for the Challenge team and falls under the spell of Alice, a lovely blond with an extensive sexual past.