  We propose simple scoto-seesaw models to account for dark matter and neutrino
masses with spontaneous CP violation. This is achieved with a single horizontal
$\mathcal{Z}_8$ discrete symmetry, broken to a residual $\mathcal{Z}_2$
subgroup responsible for stabilizing dark matter. CP is broken spontaneously
via the complex vacuum expectation value of a scalar singlet, inducing leptonic
CP-violating effects. We find that the imposed $\mathcal{Z}_8$ symmetry pushes
the values of the Dirac CP phase and the lightest neutrino mass to ranges
already probed by ongoing experiments, so that normal-ordered neutrino masses
can be cornered by cosmological observations and neutrinoless double beta decay
experiments.
