Inspired by writer, director, and star Aml Ameen's life, Boxing Day follows Melvin (Ameen), a British author living in America, who returns home to London for Christmas to introduce his American fiancée, Lisa (King), to his eccentric British-Caribbean family. Their relationship is put to the test as she discovers the world her fiancée has left behind.

Johnny flees Manchester for London, to avoid a beating from the family of a girl he has raped. There he finds an old girlfriend, and spends some time homeless, spending much of his time ranting at strangers, and meeting characters in plights very much like his own.

The curse of the headless horseman is the legacy of the small town of Sleepy Hollow. Spearheaded by the eager Constable Ichabod Crane and his new world ways into the quagmire of secrets and murder, secrets once laid to rest, best forgotten and now reawakened, and he too, holding a dark secret of a past once gone.