When tea shop owner Theodosia slips away from serving tea and scones at the Neptune Aquarium, she discovers the body of a man, tangled in a net, in the vast Ocean Wall exhibit. EMTs say the man drowned, but Theodosia spots defensive wounds. Though police aren’t keen on her theory, Theodosia chases down a raft of suspects that include a shady lawyer, extravagant lady restaurateur, and aquarium board member.