  We explore a new possibility of BRST construction in higher spin field theory
to obtain a consistent Lagrangian for massive spin-2 field in Einstein space.
Such approach automatically leads to gauge invariant Lagrangian with suitable
auxiliary and Stuckelberg fields. It is proved that in this case a propagation
of spin-2 field is hyperbolic and causal. Also we extend notion of partial
masslessness for spin-2 field in the background under consideration.
