Brenda Blethyn stars as Grace Trevethen, whose late husband jumped out of a plane without a parachute. Grace has been left with a manor on the Cornish Coast - and the massive, suffocating mountain of debt her husband had been secretly amassing. Now, with creditors and repossessors on her heels, Grace is faced with the prospect of losing everything. Desperate times call for desperate measures, so when Grace is asked to tend an ailing, if illicit, plant she gets an outrageous idea.