'[T]he plot revolves around three friends at a wedding which turns deadly after one of the bridesmaids unknowingly invites a malevolent stranger into their lives, triggering a deadly chain reaction that blows open a world of secrets.'
Source: If Magazine (https://www.if.com.au/abbie-cornish-katie-mcgrath-and-georgina-haig-star-in-sevens-romantic-thriller/). (Sighted: 13/05/2019).