A "folie à deux" dystonic reaction.
D000328:Adult; D001480:Basal Ganglia Diseases / Q000139:chemically induced / Q000175:diagnosis* / Q000523:psychology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D012565:Schizophrenic Psychology; D012753:Shared Paranoid Disorder / Q000175:diagnosis* / Q000209:etiology / Q000523:psychology