A group of four siblings reunite in Glasgow on the eve of their mother's funeral, and the children mourn their mother's passing in a variety of ways—sometimes heartfelt, sometimes bizarre. As a potential thunderstorm threatens to damage the city, the situation compounds itself.

Douglas Henshall
as Michael

Gary Lewis
as Thomas

Rosemarie Stevenson
as Sheila

Stephen McCole
as John

Ann Swan
as Mother of Family

Frank Gallagher
as Tanga

Alex Norton
as Hanson

Dave Anderson
as Uncle Ian

Malcolm Shields
as DD Duncan

Laura O'Donnell
as Carole