Trinogamous

And we mus[t]n't forget "Three of Hearts," a feature-length documentary about the nine- year "trinogamous" relationship among bisexual men Sam Cagnina and Steven Margolis and heterosexual woman Samantha Singh.

When a man is shot dead on the sidewalk, two women claim to be his wife. Mac, Stella, and dr. hawkes soon discover that the trio were involved in a trinogamous relationship that might not have been as happy as the widows claim.