Olga Barkovskaya faces problems in her family life—the visions she and her husband have for their future together do not align. The situation becomes more complicated when Igor is accused of murdering Yuri Zakharov, his former father-in-law. Shortly before his death, Zakharov sent Igor tablets featuring Japanese sangaku puzzles. To figure out what happened and clear her husband’s name, Olga must rise to a new mathematical challenge. To find out how the events unfold, watch “The Sangaku Mystery” online on ivi.
