Whistle

Chrys (Dafne Keen) is explicitly described as a 'drug-addicted lesbian' who has a 'new girlfriend,' Ellie (Sophie Nélisse). Their 'sapphic love story' is called 'the heart of the film,' and their 'sweet' connection is noted, with the director stating this 'authentic relationship' was a key appeal. Chrys and Ellie share a kiss in bed.

Characters are attacked with firearms and improvised weapons, as well as by supernatural beings, resulting in visible blood, gore, and injuries. Examples include Mason being found 'burnt to a crisp in the shower', a character suffering 'mangled body' and 'lacerations' from a car crash (in their bedroom), and another victim's 'flesh grind[ing] up into a bloody mist.' A character also 'cuts their own hand deliberately.'

Approximately 'four dozen curse words' are used throughout the film. Specific types of profanity mentioned include 'sexual expletives,' 'scatological curses,' 'terms of deity,' and 'a homophobic slur.'

The plot's premise is that blowing an 'ancient Aztec death whistle' summons the victims' future deaths to hunt them down. Mason's grandmother, Mrs. Raymore, reveals the whistle is cursed and states, 'You didn't find it... It found you.' The whistle's sound is said to 'replicate... wind to appease an Aztec deity.' An Aztec god is also suggested to be collecting souls.

Chrys is a 'recovering drug addict' whose father 'perished in a horrific car accident while trying to rush his overdosing teenage daughter to the hospital.' An 'imaginary sequence features a woman with a needle sticking out of her arm.' Noah, a 'local youth pastor,' 'sells drugs to his young followers,' even introducing himself with a variation of 'Hey, I'm the youth pastor. Would you like some drugs?' 'A teenager drives while intoxicated.'

The film features 'strong violent content' and 'gore,' leading to its R rating. There are 'jump scares' and characters are attacked by 'supernatural beings.' The deaths are described as 'particularly gnarly' and 'spectacular,' often involving disturbing imagery such as a 'fiery figure' stalking a victim or a character experiencing a 'slow-motion car crash…in their bedroom…with no car.'

The character Noah is a 'local youth pastor' who 'sells drugs to his young followers,' even explicitly offering drugs to the protagonist. This portrayal is highly contradictory to Christian values and leadership. The entire premise revolves around an 'ancient Aztec death whistle' that summons an 'Aztec god' to collect souls, which is a form of paganism and directly challenges a Christian worldview of God and the afterlife.