\documentclass[]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\begin{filecontents}{\jobname.bib}
@article{KillBiber,
author = {Canageek},
pages = {1--666},
title = {{Iä! Iä! Cthulhu fhtagn!}},
year = {2017},
journal = {J. Fail}}
}
\end{filecontents}
\usepackage[backend=biber]{biblatex}
\addbibresource{MWE.bib}
\begin{document}
Delete the title line and it works fine.
\nocite{*}
\printbibliography[heading = none]
\end{document}