Unforgivable Sinner

Birmingham Evening Mail called the song a "mature" debut, describing it as the "sort of mid-tempo, intense material somebody like Natalie Imbruglia would release."[2] Håkon Moslet from Norwegian newspaper Dagbladet said in his review of Playing My Game, that "Unforgivable Sinner" is a "clear highlight" of the album. He added that "with its slightly dark and disconcerting atmosphere and a refrain you never seem to get bored with, it is one of a kind."[3] Geir Rakvaag from Dagsavisen noted that the song, with "Sitting Down Here" and "Where I'm Headed" are the "most earcatching" songs of the album.[4] Terje Carlsen from Fredrikstad Blad called it "immaculate".[5] Pia M. Isaksen from Moss Dagblad was less enthustiastic, noting it as "traditional folk", adding that the melody is "nice".[6] New Straits Times called it an "outstanding" tune "set to a pop-hiphop beat with a strong arrangement powered by acoustic guitars".[7] Kjell Nordeng from Nordlands Framtid noted the song with "Sitting Down Here" as "cream of the crop" of the album.[8] Rune Slyngstad from Nordlandsposten gave it 4 out of 6, noting it as a "fresh, nice and sauntering pop-song".[9] Lasse Jangås from Nordlys described it as "wonderful".[10] Pop Rescue wrote, "This one definitely fits in with the likes of [Natalie] Imbruglia’s hit Torn. It has plenty of acoustic strumming, but also plenty of ‘go’ in it too. It's up-beat, catchy, and deserved to be a bigger hit than it was."[11] Linda Nilsen from Tromsø gave the song 6 out of 6, noting that it is "simply something of the best I have ever heard from a Norwegian artist."[12]

The first video for "Unforgivable Sinner" was filmed in Norway on 10 July 1998.[13] It features Marlin performing with her guitar at a subway station in Oslo. She also performs while walking in a dark tunnel. Some small scenes in between show her dressed like an angel. Clips from the movie Schpaa are shown through the video. At the end, Marlin as an angel sits atop of a high building looking out over the city.

The second and international version of the video was directed by Stephen Scott and shot at a train station in Toronto, Canada. It has a blue tone and shows Marlin performing inside the station building. A story of a man that is haunted by memories from his childhood is being told in the video. Now grown-up, he keeps seeing the face of a young girl he once knew as a kid. Something happened to her, and he feels guilty. He "sees" her among the crowd of passing people at the station, but then she is gone. In the end the man and Marlin, standing next to each other, are watching the board with train timetables. Then the words "Take Hold Now -- The Future Will Not Remember -- The Past Does Not Forget" suddenly appear on the board.

The third version was directed by Jamie Morgan and features a darkhaired Marlin performing in New York City. In some scenes, she performs in a car that is driving through the city. Other scenes show her at a camping site, where a group of young people are staying, by a caravan. Occasionally a girl wearing wings appears at different sites in the city. The day turns into night and then again to day. The video ends with Marlin strumming on her guitar in the driving car.