Dorothy is terrified of the May Moose but when she is locked in the attic with him as a punishment they become inseparable and she no longer sees the attic as her prison but as her path to freedom.

Parenting is one of the most difficult jobs in the world. How do you cope with a willful child? When Albert and Emiline Rutherford try to discipline their daughter Dorothy, things get worse as Dorothy turns to her imaginary friend The May Moose for support. Together Dorothy and The May Moose plan Dorothy's future and it is only when Albert Rutherford returns home after the Second World War that he makes a horrific discovery.