Can you keep a secret?

It's been nearly 20 years since Patrick Bagenal, stood with this group of friends at Thornbury Hall - his family's crumbling home that he can no longer afford to keep.

The last time was Patrick's 18th birthday, an occasion swiftly followed by his father's suicide.

Before Patrick sells up, he and his sister Rachel, school friends Niall, Hilary, and Marcus and old flame Lindsey are back here for one last visit, a shooting party to rid the grounds of the legion of crows.

But as the weekend wears on, the layers of the past are stripped away and murky secrets begin to surface.

Ones that compel revenge at any cost.