Though never seen, a bit more is revealed about Brenda's three siblings: Bobby whom Clay (Brenda's dad) doesn't want to talk about; Clay Jr. who is a workaholic; and, Jimmy who lives in a one-bedroom apartment in New York with his roommate Frank (suggesting a gay relationship kept hidden from Clay).
The murder at the beginning takes place in the same location as the murder at the beginning of Tourist Trap (2016).
In 2010, D.B. Sweeney portrayed a District Attorney in Criminal Justice (2010) accused of beating his wife's lover to death and leaving evidence in an unrelated murder framing someone else trying to find out who she is having an affair with.