The wetland find in Levänluhta (western Finland) consists of unburnt, mixed up remains from almost 100 human individuals along with artefacts and animal bones. This spring site, a small lake at the time of use (ad 300–800), has been investigated archaeologically from the late nineteenth century onwards. An impressive array of finds, including precious artefacts, is on display at the National Museum of Finland. However, the material has not previously been subjected to systematic research to clarify who these people were, and why they were buried in a small lake at a time when cremation was the prevailing burial tradition. Here we present the results of a multidisciplinary study that includes new analyses and interpretations of the finds and the site. Prestigious artefacts, peripheral location, and the fact that only a few males were found suggest this unusual burial site was a cemetery for socially or ideologically deviant members of the society.