The debt that the couple were carrying on the Seaton Carew properties was, in the scale of British personal debt in 2002, not enormous. A mortgage of approximately £130,000—which the insurance payout eventually paid off—was a significant but not unusual amount of debt for property owners in England at that time. What it apparently represented to the Darwins was not just an amount of money but a trap: a commitment that the expected income from the properties would not cover, that their regular income would not service comfortably, and from which there was no obvious legitimate exit.
Whether the debt situation was, objectively, as dire as Darwin apparently experienced it is a separate question. People’s relationships to financial stress are not always proportionate to the objective scale of the stress. The psychological experience of being unable to meet financial obligations—of seeing no legitimate way out, of anticipating the loss of both properties, of imagining the public consequences of business failure—can be acutely distressing even when the objective amounts are manageable in principle. Whether the Darwins genuinely had no legitimate options, or whether they simply didn’t pursue the legitimate options that existed, is not established.
What is established is that by the time Darwin paddled out into the North Sea on March 21, 2002, the plan had been in development for some time. The insurance policy was three months old. He had thought about it enough to take preparatory steps. He had, presumably, discussed it with Anne—because the scheme required her active participation from the very beginning, from the moment she filed the missing-person report and made her statements to the press.