Experiment Ausgeliefert — Sein 27

Alternatively, maybe it's a YouTube video or a blog post. Or perhaps it's a fictional reference. If there's no direct hit, the user might have made a typo or misremembered the name. I should consider that possibility too. Could it be "27" as in the number 27, related to the 27 Club in music? Not probably. Or maybe "27" refers to the number of participants in the experiment?