The drama begins in 1931, as Walter Ogilvie hides a bloodied apron in a hole in the attic, watched by his distraught wife, Gracie, and mother-in-law Elizabeth. Smoothing plaster over the wall, Walter looks to his family and says: "Nobody talks about this, ever"...

Cut to 2011, and 80-year-old Frank Ogilvie has lived at 32 Brinkburn Street all his life. But Frank doesn't know that at the heart of his family is a dark secret - that behind the attic wall lies a body hidden in 1931. It's a secret that could blow Frank's family apart for ever...