Melvin Mckenzie (Aml Ameen) returns home to London for Christmas to promote his new book and introduce his American fiancée Lisa to his eccentric British-Caribbean family. Their relationship is put to the test as she discovers the world he has left behind, including his ex-girlfriend Georgia (Leigh-Anne Pinnock), a global superstar with unresolved feelings for him. As they navigate their complicated pasts and present-day relationships, Melvin's family holiday becomes a backdrop for love, reunion, and self-discovery, set against the vibrant backdrop of London on Boxing Day.