The campaign, created by M&C Saatchi, featured the strapline "Scary just got sexy" to promote the series, which follows the exploits of two brothers who investigate bizarre goings-on across America.
One ad showed a woman with glamorous hair and make-up, wearing a blood-spattered hockey mask reminiscent of the Jason character from 'Friday the 13th'. Another showed a woman in a red dress with a large knife in her hand, standing next a door with the numbers "666" on it.
Six complaints were received about the campaign, which ran in The Guardian and The Independent. ITV2 argued against them, saying that it had acted responsibly in its approach and that the images were highly stylised.
The campaign previously ran as a poster ad featuring the same words and images.
The Advertising Standards Authority agreed with the argument about the stylised campaign and said that consumers were likely to realise that they reflected the content of a TV programme. It did not uphold the complaints.
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