Let $R$ be a (noncommutative) unital ring with no zero-divisorswhich is a domain let and let $\mathcal{N}$ be a non-zero right module that is projective and torsion-free(right) module. Projectivity of course implies that $\mathcal{N}$ is flat, but does projectivity together with torsion-freeness suffice tothe fact that $R$ is also a domain imply that $\mathcal{N}$ is faithfully flat?