: Revealed to have hacked Alison's hearing aids to listen in on her private conversations with the police, showing he is far more suspicious and technologically savvy than he lets on.
: Alison's ex-boyfriend attempts to win her back with a proposal at an old cinema, which she ultimately rejects to pursue her dinner with Liam. [S1E4] Code of Silence
: Mild (threats of violence from gang members like Braden). : Revealed to have hacked Alison's hearing aids
: Moderate (frequent use of "F-words" and other strong language). [S1E4] Code of Silence
Note: There is also a 2017 series titled with an episode of the same name (S1E4), which focuses on a hair show and the aftermath of Otis's death. Code of Silence S1 E4 - Drama - BritBox